Wireless communication method and apparatus

Abstract

The present application provides a wireless communication method and apparatus. The wireless communication method includes: receiving indication information of a first pattern, the first pattern being one of a plurality of patterns, each of the plurality of patterns indicating a distribution of at least one resource in a frequency domain, the at least one resource including at least one of a first resource, a second resource, and a third resource, the first resource being a definitely available resource, the second resource being an unavailable resource, and the availability of the third resource being dependent on a further indication of an upper node; and communicating with a second network device and / or a terminal device based on the first pattern. According to the wireless communication method and apparatus in the embodiment of the present application, a frequency domain resource pattern is set in a slot requiring frequency division, and the availability of some or all resources in each frequency division slot is indicated based on dynamic signaling. Thus, the frequency division setting is not overly flexible, the signaling overhead is further reduced, and the system performance is improved.

Description

Technical Field

[0001] This application relates to the field of communications, and particularly to wireless communication methods and devices.

Background Art

[0002] With the continuous development of mobile communication technology, spectrum resources are becoming increasingly scarce. Access network devices will be more densely deployed in the future to improve spectrum utilization. In the conventional cellular network architecture, the access network device connects the terminal device to the core network via optical fiber. However, the deployment of optical fiber is costly in many scenarios. Therefore, the wireless backhaul link between the relay device and the access network device is used to implement the connection to the core network by using the integrated access and backhaul (IAB) technology to avoid the high cost caused by the deployment of a large number of optical fibers.

[0003] However, in the new radio (NR) system, the resource configuration of the relay node is redundant and complex, and the overhead for dynamically indicating the configuration overhead and resources is excessive. Therefore, how to configure the resources of the relay node to reduce the configuration complexity and signaling overhead is an urgent issue that needs to be solved currently.

Summary of the Invention

[0004] This application provides a wireless communication method and device for configuring the resources of a relay node and reducing the resource configuration complexity while reducing the signaling overhead.

[0005] A wireless communication method is provided according to a first aspect. The method includes receiving first information, the first information comprising first pattern instruction information, the first pattern being one of a plurality of patterns, each of which indicates the distribution of at least one resource in the frequency domain, the at least one resource comprising at least one of the following: first resource, second resource, and third resource, the first resource being a reliably available resource, the second resource being an unavailable resource, the availability of the third resource being determined by the first instruction information, the first instruction information being transmitted by a first network device, and the resource distributions indicated by any two patterns being different; and communicating with a second network device and / or terminal device based on the first pattern.

[0006] For example, if the first network device does not send first instruction information regarding the availability of the third resource, the third resource is not available to the DU cell by default.

[0007] It should be understood that this invention applies to wireless communication systems including relay nodes. The relay node may be an IAB node, or a terminal device, i.e., a terminal device with wireless relay functionality. The availability of the first, second, and third resources may be set for cells in the distributed unit (DU) of the first node, or for the bandwidth part (BWP) of the distributed unit of the first node, or for some frequency domain resources of the first node distributed unit (DU), such as a resource block group (RBG). The first network device is a higher-level node of the first node, and the second network device is a lower-level node of the first node.

[0008] It should be noted that the first resource may be an H (hard) frequency domain resource indicating a frequency domain resource that is reliably available to the DU cell; the second resource may be an NA (not available) frequency domain resource indicating a resource that is unavailable to the DU cell but is available to a mobile-termination (MT); and the third resource may be an S (soft) frequency domain resource indicating that the availability of the resource to the DU cell must be determined based on instruction information transmitted by the higher-level node.

[0009] In this embodiment of the present application, after further indication, the availability of S resources may be determined to be "available" or "unavailable," or to be determined to be "available" or "no availability indication." Availability indications may be set for one or more of the three TDD transmission direction settings: uplink, downlink, and flexible. For example, signaling may indicate that S uplink resources are indicated as available, while S downlink resources and S flexible resources are indicated as not available.

[0010] For example, when at least one resource is a first resource, the first node can communicate with terminal devices and / or lower relay nodes; when at least one resource is a second resource, the first node cannot communicate with terminal devices but can communicate with a first network device; or when at least one resource is a third node, the first node must determine, based on instructions from the first network device, whether the third node can be used to communicate with terminal devices and / or lower relay nodes.

[0011] Communicating with a second network device and / or terminal device based on the first pattern involves determining the resources for communication between the first node and the second network device and / or terminal device based on the first pattern, where it should be noted that the first node is a relay node.

[0012] According to the solution provided herein, multiple frequency domain resource patterns are configured and defined. Each pattern includes at least one of the following resource types: “Reliably available,” “Unavailable,” and “Availability depends on further instructions from higher-level nodes.” The first pattern is directed using first information, and the first pattern is used to carry out communication between network devices and first nodes and / or terminal devices. Constraints are imposed on the allocation of frequency division multiplexing resources, so that the network (e.g., donor base stations and IAB nodes) can perform at least frequency division on the available bandwidth of a DU cell, or not perform frequency division at all, and can quasi-statically configure corresponding signal and channel resources, etc., for terminal devices (e.g., UEs) in some bandwidth. This avoids excessively high signaling overhead caused by the excessive complexity of frequency division resource configuration and avoids the burden caused by the possibility that UEs may not support the memory of excessive resource configurations. Thus, frequency division resource configuration is not excessively flexible, signaling overhead can be reduced, and system performance can be improved.

[0013] It should be understood that the guard band between the MT and DU must be considered regardless of the solution for setting the frequency division pattern in this application, or the solution for setting the quasi-static frequency domain resource segmentation in the possible implementations described above, or the solution for setting multiple frequency domain resource block groups (RBGs) in the present art.

[0014] For example, constraints for determining the size of the protection bandwidth in frequency division (or frequency division pattern) configuration may be defined in the protocol or reported to the donor base station by the IAB. Constraints may include relationships between the protection bandwidth and the bandwidth of the DU or MT, relationships between the protection bandwidth and the transmission timing mode, or relationships between the protection bandwidth and the synchronization status.

[0015] It should be noted that the IAB's reporting to the donor base station may be done before the donor base station transmits the frequency division configuration to the IAB, or it may be done after the donor base station transmits the frequency division configuration to the IAB.

[0016] When reporting occurs after a donor base station has transmitted a frequency division configuration to the IAB, it can be understood that the donor base station initially configures the configuration for the IAB, but after the IAB receives the configuration, it realizes that the configuration does not satisfy the protected bandwidth requirements or the IAB's hardware capabilities, and therefore the IAB is triggered to report those constraints.

[0017] It should be further understood that different transmission timing schemes are defined in the protocol standard for different transmission modes, including cases #1, #6, and #7. The timing mode in case #1 requires that the transmission timing of the DU from an IAB node must be the same as that of other nodes, including the donor node, in order to satisfy the inter-site synchronization requirements of the TDD system. The timing mode in case #6 is used for spatial division transmission. The timing mode in case #7 is used for spatial division reception and may also be used for uplink full duplex.

[0018] The three timing types described above specify rules for determining the uplink transmission timing of the MT at the IAB node. In both timing type 2 and timing type 3, the uplink transmission timing of the MT is related to the downlink transmission timing of the DU. In this embodiment of the present application, it should be understood that the downlink transmission timing of the DU can be determined according to any method. For example, referring to timing type 1, the downlink transmission timing of the DU can be aligned with the downlink transmission timing of the IAB donor node. Specifically, the downlink transmission timing of the DU may be directed and coordinated by a higher node based on over-the-air synchronization (OTA synchronization) signaling, or the downlink transmission timing of the DU may be obtained based on a global positioning system (GPS), or on other systems that support timing acquisition, such as a global navigation satellite system (GNSS) or BeiDou.

[0019] It should be noted that different timing modes implicitly represent transmission modes, and the size of the protection bandwidth required can vary depending on the transmission mode. For example, full duplex generally requires more protection bandwidth than spatial division multiplexing. Generally, frequency division multiplexing is used to improve the isolation between the MT and DU during spatial division transmission or reception.

[0020] For example, frequency division multiplexing can generally be performed in the timing mode case and when the timing mode case is used.

[0021] In this application, constraints on the frequency division (or frequency division pattern) setting may be defined in the protocol or reported to the donor base station by the IAB. For example, the lowest frequency resource block (RB) of the DU cell, the highest frequency RB of the DU cell, at least the initial bandwidth portion (initial BWP) included in the frequency-divided DU cell, the absence of discontinuous frequency domain resources in the frequency-divided DU cell, up to X consecutive frequency domain resource segments of the frequency-divided DU cell, X consecutive RBs starting from the lowest frequency of the DU cell, and X consecutive RBs starting from the highest frequency of the DU cell.

[0022] Referring to the first embodiment, in some implementations of the first embodiment, Communicating with the second network device and / or terminal device based on the first pattern is: Based on the first pattern, communicate with the second network device and / or terminal device using the first time-domain resource. including .

[0023] Referring to the first aspect, in some implementations of the first aspect, the method further includes receiving configuration information before receiving the first information.

[0024] The configuration information may be the configuration information described in the 12th or 13th aspect below.

[0025] It should be understood that the first time-domain resource here may be understood as a set of time resources. The first time-domain resource may contain one or more slots. The slots may be contiguous or discontinuous. The first pattern is mapped to one or more slots and used for communication between the first node and the second network device and / or terminal device.

[0026] Optionally, different frequency-domain resource patterns may be mapped to one or more slots of the first time-domain resource.

[0027] Optionally, the first time-domain resource may alternatively include one or more symbols, and the time granularity is not limited in this application.

[0028] Referring to the first aspect, in some implementations of the first aspect, the method includes receiving second information, and the second information indicates the first time-domain resource.

[0029] Referring to the first aspect, in some implementations of the first aspect, a plurality of patterns are set by a donor network device, that is, setting information of one or more patterns transmitted by the donor network device is received. The setting information of the one or more patterns may be set by the donor network device at one or more time points. This is not particularly limited in this application.

[0030] Referring to the first aspect, in some implementations of the first aspect, before the donor network device sets a plurality of patterns, the donor network device receives frequency division multiplexing setting information transmitted by the first node, and the frequency division multiplexing setting information includes limitation conditions set for the plurality of patterns.

[0031] For example, the plurality of patterns may alternatively be predefined by a protocol. This is not limited in this application.

[0032] Referring to the first aspect, in some implementations of the first aspect, the setting of each pattern includes the frequency-domain resource bandwidth of at least one resource, each pattern has corresponding pattern identification information, and the identification information of any two patterns is different.

[0033] Referring to the first aspect, in some implementations of the first aspect, the setting of each pattern further includes the frequency-domain resource attribute of at least one resource, and each frequency-domain resource attribute is one of the first resource, the second resource, and the third resource.

[0034] It should be understood that the frequency domain resource patterns defined in the protocol may represent the attributes H / S / NA of multiple frequency domain resource segments, and / or the protocol may define frequency domain resource patterns of multiple lengths.

[0035] For example, if the frequency domain resources of a cell in the first node's distributed unit DU are divided into three segments, i.e., three sets of frequency domain resources, and each set contains contiguous frequency domain resources, then a pattern for dividing the corresponding frequency domain resources into three segments may be selected for mapping.

[0036] Optionally, if the protocol defines a pattern of frequency domain resources of only one length, for example, a pattern for dividing the frequency domain into five segments, then only resources having the first three resource attributes within each pattern should be mapped; that is, the first three resource attributes in each pattern correspond to the availability of each resource segment.

[0037] Referring to the first embodiment, in some implementations of the first embodiment, the setting of the frequency domain resource bandwidth includes the starting resource block number of at least one resource and the number of resource blocks of at least one resource.

[0038] For example, the frequency domain resource bandwidth may be set by the donor network device, or it may be predefined by the protocol. For example, the DU calculates the actual bandwidth to be directed based on the bandwidth actually used by the cell. This is not limited to the present invention.

[0039] For example, each pattern may have corresponding pattern identification information, and the frequency domain size of each resource segment within the corresponding frequency domain resource pattern and the frequency domain attributes corresponding to each resource segment may be determined by using the pattern identifier.

[0040] For example, the start and end frequency domain resource indices of scheduled frequency domain resources are mapped based on the start and length indicator value SLIV of the frequency domain resource and the start and duration of the frequency domain bandwidth resource predefined in the protocol. In other words, network devices use frequency domain H / To set the frequency domain length of the S / NA, the starting resource block number and the number of resource blocks for the corresponding frequency domain resource can be determined by using an index value.

[0041] Referring to the first aspect, in some implementations of the first aspect, the first information includes identification information for at least one pattern set, the identification information for at least one pattern set is used to determine at least one target pattern set, the at least one target pattern set includes the first pattern, the setting of each pattern set includes at least one of a plurality of patterns, each pattern set has corresponding pattern set identification information, and the identification information for any two pattern sets is different.

[0042] Referring to the first aspect, in some implementations of the first aspect, the method includes receiving third information used to configure at least one first slot, and mapping at least one first pattern to at least one first slot.

[0043] Referring to the first embodiment, in some implementations of the first embodiment, the first slot is a slot in a first time-domain periodicity, or the first slot is a slot corresponding to a time-domain resource that is a fourth resource in the first time-domain periodicity, the first time-domain periodicity corresponds to the setting periodicity of the first time-domain resource, the availability of the fourth resource is determined by second instruction information, and the second instruction information is transmitted by a first network device.

[0044] Optionally, the first slot may be any of the slots in the first time-domain periodicity.

[0045] It should be understood that the first slot here may be a non-TDM slot, or may be directly referred to as an FDM slot. The specific name of the first slot is not limited in this application. The first slot supports only one function, namely frequency division resource setting, which may be set for several slots. Furthermore, the number of first slots supporting this function is also not limited in this application.

[0046] It should be noted that the first slot is simply an implementation of time granularity. Alternatively, the first symbol, etc., may be determined in the first time segment. The specific time granularity is not limited in this application.

[0047] For example, the first periodicity may correspond to the setting periodicity of H / S / NA time domain resources in the first time segment, or the periodicity may be set individually in units of slots or absolute time, or a single system frame may be used as the periodicity. The method for determining the first periodicity is not limited herein.

[0048] Referring to the first embodiment, in some implementations of the first embodiment, the total number of slots in the first time segment and / or first periodicity is determined based on the subcarrier interval, and the number of slots corresponding to the first slot is determined based on the number of the first slot and / or the set of numbers of the first slot.

[0049] For example, the DU calculates the number of slots in the first periodicity based on the configured periodicity of the H / S / NA time-domain resource and the configured subcarrier interval, and then determines which slots are non-TDM slots based on the number of the first slots.

[0050] For example, the total number of slots in periodicity is determined by referring to the subcarrier interval of the initial bandwidth portion BWP of the DU cell, since the total number of slots in the system frame is constant at a given subcarrier interval.

[0051] Optionally, the reference subcarrier interval may be set individually, or it may refer to a subcarrier interval already set in other signaling or other application scenarios in other current protocols. This is not limited to the present invention.

[0052] Referring to the first embodiment, in some implementations of the first embodiment, the number of at least one pattern is the same as the number of first slots, or the number of at least one pattern is a positive integer multiple of the number of first slots, or the number of at least one pattern is less than the number of first slots.

[0053] Optionally, when H / S / NA frequency domain resources are mapped to the first slot, different frequency domain resource patterns may be mapped to the first slot. For example, an H frequency domain resource may be mapped to the first slot, or an NA frequency domain resource may be mapped to the first slot based on this resource configuration. In this case, the NA frequency domain resource takes precedence over the H frequency domain resource; that is, the availability of the frequency domain resource for the first node's DU in the first slot is changed from a resource that is definitely available to a resource that is not available. Specifically, in the mapping of frequency domain resources to time domain resources, H, S, and NA resources may be combined randomly, in particular according to the requirements for communication between the network device and the first node and / or terminal devices. This is not limited to the present invention.

[0054] Optionally, one of the H / S / NA frequency domain resources may be mapped to the first slot, or S+NA, i.e., the S frequency domain resource is first mapped to the first slot, and then the NA frequency domain resource is mapped to the S resource based on further instruction information, or S+H, H+NA, S+H+NA, etc. The resource mapping scheme is not limited in this application.

[0055] Optionally, the same frequency domain resource, for example, an H frequency domain resource, may be mapped to different time domain resources, for example, an S time domain resource and an NA time domain resource. This is not limited to the present invention.

[0056] Referring to the first embodiment, in some implementations of the first embodiment, the method includes receiving fourth information, the fourth information indicating the resource availability of third resources, for example, S-time domain resources and S-frequency domain resources.

[0057] Referring to the first aspect, in some implementations of the first aspect, the fourth information further indicates the resource availability of the fourth resource, i.e., the resource whose time-domain resource attribute is S.

[0058] Referring to the first aspect, in some implementations of the first aspect, the method includes receiving fifth information indicating grouping information of frequency domain resources corresponding to a first slot, and receiving sixth information indicating resource attributes of at least one frequency domain resource group.

[0059] It should be noted that the granularity and method of frequency domain resource partitioning may be RBG, the number of RBs, the bandwidth portion BWP, etc. This is not particularly limited in this application.

[0060] Referring to the first aspect, in some implementations of the first aspect, the method includes obtaining a first relation and / or a second relation, where the first relation is a correspondence between a first parameter and indication information for the availability of a first resource, where the first relation indicates resource availability for a first slot; and a second relation is a correspondence between a second parameter and indication information for the availability of a second resource, where the second relation indicates resource availability for a frequency domain resource in the first slot; and determining a first pattern based on the first relation and / or the second relation.

[0061] The first and second relationships may indicate the availability of all time-domain resources and the availability of all frequency-domain resources, and / or the resource availability of the first slot, i.e., the slot requiring frequency division multiplexing, and / or the availability of frequency-domain resources for the first slot. This is not particularly limited in this application.

[0062] Referencing the first aspect, in some implementations of the first aspect, the method includes receiving seventh information, the seventh information comprising identification information for at least one instruction set, the identification information for at least one instruction set being used to determine at least one target instruction set, the at least one target instruction set comprising first and / or second parameters, the identification information for any two instruction sets being different, and determining resource attributes for one or more frequency domain resources of at least one first slot based on the at least one target instruction set.

[0063] In this application, the instruction information, configuration information, etc., may be carried without limitation in one of the following: wireless resource control signaling, media access control MAC layer signaling, and physical layer PHY signaling, or at least two combinations thereof. Wireless resource control signaling includes wireless resource control RRC signaling. MAC layer signaling includes MAC control elements (CE). Physical layer signaling includes downlink control information (DCI), etc.

[0064] A wireless communication method is provided according to a second aspect. The method includes transmitting first information, the first information comprising first pattern instruction information, the first pattern being one of a plurality of patterns, each of which indicates the distribution of at least one resource in the frequency domain, the at least one resource comprising at least one of the following: first resource, second resource, and third resource, the first resource being a reliably available resource, the second resource being an unavailable resource, the availability of the third resource being determined by the first instruction information, the first instruction information being transmitted by a first network device, and the resource distributions indicated by any two patterns being different; and communicating with a first node and / or terminal device based on the first pattern, the first node being a relay node.

[0065] For example, if the first network device does not send first instruction information regarding the availability of the third resource, the third resource is not available to the DU cell by default.

[0066] It should be understood that this invention applies to wireless communication systems including relay nodes. The relay nodes may be IAB nodes or terminal devices, i.e., terminal devices with wireless relay functionality. The availability of the first, second, and third resources may be set for cells of the first node's distributed unit DU, or for the bandwidth portion BWP of the first node's distributed unit, or for some frequency domain resources of the first node's distributed unit DU, e.g., RBG. The first network device is a higher-level node of the first node, and the second network device is a lower-level node of the first node.

[0067] It should be noted that the first resource may be an H (hard) frequency domain resource indicating a frequency domain resource that is definitely available to the DU cell; the second resource may be an NA (not available) frequency domain resource indicating a resource that is unavailable to the DU cell but is available to the mobile terminal MT; and the third resource may be an S (soft) frequency domain resource indicating that the availability of the resource to the DU cell must be determined based on instruction information transmitted by the higher-level node.

[0068] In this embodiment of the present application, after further indication, the availability of S resources may be determined to be "available" or "unavailable," or to be determined to be "available" or "no availability indication." Availability indications may be set for one or more of the three TDD transmission direction settings: uplink, downlink, and flexible. For example, signaling may indicate that S uplink resources are indicated as available, while S downlink resources and S flexible resources are indicated as not available.

[0069] For example, when at least one resource is a first resource, the first node can communicate with terminal devices and / or lower relay nodes; when at least one resource is a second resource, the first node cannot communicate with terminal devices but can communicate with a first network device; or when at least one resource is a third node, the first node must determine, based on instructions from the first network device, whether the third node can be used to communicate with terminal devices and / or lower relay nodes.

[0070] Communicating with the first node and / or terminal device based on the first pattern involves determining the resources for communication between the network device and the first node and / or terminal device based on the first pattern, where it should be noted that the first node is a relay node.

[0071] According to the solution provided herein, multiple frequency domain resource patterns are configured and defined. Each pattern includes at least one of the following resource types: “Reliably available,” “Unavailable,” and “Availability depends on further instructions from higher-level nodes.” The first pattern is directed using first information, and the first pattern is used to carry out communication between network devices and first nodes and / or terminal devices. Constraints are imposed on the allocation of frequency division multiplexing resources, so that the network (e.g., donor base stations and IAB nodes) can perform at least frequency division on the available bandwidth of a DU cell, or not perform frequency division at all, and can quasi-statically configure corresponding signal and channel resources, etc., for terminal devices (e.g., UEs) in some bandwidth. This avoids excessively high signaling overhead caused by the excessive complexity of frequency division resource configuration and avoids the burden caused by the possibility that UEs may not support the memory of excessive resource configurations. Thus, frequency division resource configuration is not excessively flexible, signaling overhead can be reduced, and system performance can be improved.

[0072] It should be understood that the guard band between the MT and DU must be considered regardless of the solution for setting the frequency division pattern in this application, or the solution for setting the quasi-static frequency domain resource segmentation in the possible implementations described above, or the solution for setting multiple frequency domain resource block groups (RBGs) in the present art.

[0073] For example, constraints for determining the size of the protection bandwidth in frequency division (or frequency division pattern) configuration may be defined in the protocol or reported to the donor base station by the IAB. Constraints may include relationships between the protection bandwidth and the bandwidth of the DU or MT, relationships between the protection bandwidth and the transmission timing mode, or relationships between the protection bandwidth and the synchronization status.

[0074] It should be noted that the IAB's reporting to the donor base station may be done before the donor base station transmits the frequency division configuration to the IAB, or it may be done after the donor base station transmits the frequency division configuration to the IAB.

[0075] When reporting occurs after a donor base station has transmitted a frequency division configuration to the IAB, it can be understood that the donor base station initially configures the configuration for the IAB, but after the IAB receives the configuration, it realizes that the configuration does not satisfy the protected bandwidth requirements or the IAB's hardware capabilities, and therefore the IAB is triggered to report those constraints.

[0076] It should be further understood that different transmission timing schemes are defined in the protocol standard for different transmission modes, including cases #1, #6, and #7. The timing mode in case #1 requires that the transmission timing of the DU from an IAB node must be the same as that of other nodes, including the donor node, in order to satisfy the inter-site synchronization requirements of the TDD system. The timing mode in case #6 is used for spatial division transmission. The timing mode in case #7 is used for spatial division reception and may also be used for uplink full duplex.

[0077] The three timing types described above specify rules for determining the uplink transmission timing of the MT at the IAB node. In both timing type 2 and timing type 3, the uplink transmission timing of the MT is related to the downlink transmission timing of the DU. In this embodiment of the present application, it should be understood that the downlink transmission timing of the DU can be determined according to any method. For example, referring to timing type 1, the downlink transmission timing of the DU can be aligned with the downlink transmission timing of the IAB donor node. Specifically, the downlink transmission timing of the DU may be directed and coordinated by a higher node based on over-the-air synchronization (OTA synchronization) signaling, or the downlink transmission timing of the DU may be obtained based on a global positioning system (GPS), or on other systems that support timing acquisition, such as a global navigation satellite system (GNSS) or BeiDou.

[0078] It should be noted that different timing modes implicitly represent transmission modes, and the size of the protection bandwidth required can vary depending on the transmission mode. For example, full duplex generally requires more protection bandwidth than spatial division multiplexing. Generally, frequency division multiplexing is used to improve the isolation between the MT and DU during spatial division transmission or reception.

[0079] For example, frequency division multiplexing can generally be performed in the timing mode case and when the timing mode case is used.

[0080] In this application, constraints on the frequency division (or frequency division pattern) setting may be defined in the protocol or reported to the donor base station by the IAB. For example, the lowest frequency RB of the DU cell, the highest frequency RB of the DU cell, at least the initial bandwidth portion included in the frequency-divided DU cell, the lack of discontinuous frequency domain resources in the frequency-divided DU cell, up to X consecutive frequency domain resource segments of the frequency-divided DU cell, X consecutive RBs starting from the lowest frequency of the DU cell, and X consecutive RBs starting from the highest frequency of the DU cell.

[0081] Referring to the second aspect, in some implementations of the second aspect, communicating with a first node and / or terminal device based on the first pattern includes communicating with a first node and / or terminal device in a first time-domain resource based on the first pattern.

[0082] It should be understood that the first time-domain resource here may be understood as a set of time resources. The first time-domain resource may contain one or more slots. The slots may be contiguous or discontinuous. The first pattern is mapped to one or more slots and used for communication between the first node and the second network device and / or terminal device.

[0083] Optionally, different frequency-domain resource patterns may be mapped to one or more slots of the first time-domain resource.

[0084] Optionally, the first time domain resource may alternatively include one or more symbols, and the time granularity is not limited herein.

[0085] Referring to the second aspect, in some implementations of the second aspect, the method includes transmitting second information, the second information indicating a first time-domain resource.

[0086] Referring to the second aspect, in some implementations of the second aspect, multiple patterns are configured by a donor network device, that is, configuration information for one or more patterns transmitted by the donor network device is received. The configuration information for one or more patterns may be configured by the donor network device at one or more points in time. This is not particularly limited in the present invention.

[0087] Referring to the second aspect, in some implementations of the second aspect, before the donor network device sets up multiple patterns, the donor network device receives frequency division multiplexing configuration information transmitted by the first node, the frequency division multiplexing configuration information includes constraints set for multiple patterns.

[0088] For example, multiple patterns may be predefined in the protocol instead. This is not limited to the present application.

[0089] Referring to the second aspect, in some implementations of the second aspect, each pattern configuration includes the frequency domain resource bandwidth of at least one resource, each pattern has corresponding pattern identification information, and the identification information of any two patterns is different.

[0090] Referring to the second aspect, in some implementations of the second aspect, each pattern configuration further includes a frequency domain resource attribute of at least one resource, where each frequency domain resource attribute is one of the first resource, the second resource, and the third resource.

[0091] It should be understood that the frequency domain resource patterns defined in the protocol may represent the attributes H / S / NA of multiple frequency domain resource segments, and / or the protocol may define frequency domain resource patterns of multiple lengths.

[0092] For example, if the frequency domain resources of a cell in the first node's distributed unit DU are divided into three segments, i.e., three sets of frequency domain resources, and each set contains contiguous frequency domain resources, then a pattern for dividing the corresponding frequency domain resources into three segments may be selected for mapping.

[0093] Optionally, if the protocol defines a pattern of frequency domain resources of only one length, for example, a pattern for dividing the frequency domain into five segments, then only resources having the first three resource attributes within each pattern should be mapped; that is, the first three resource attributes in each pattern correspond to the availability of each resource segment.

[0094] Referring to the second embodiment, in some implementations of the second embodiment, the setting of the frequency domain resource bandwidth includes the starting resource block number of at least one resource and the number of resource blocks of at least one resource.

[0095] For example, the frequency domain resource bandwidth may be set by the donor network device, or it may be predefined by the protocol. For example, the DU calculates the actual bandwidth to be directed based on the bandwidth actually used by the cell. This is not limited to the present invention.

[0096] For example, each pattern may have corresponding pattern identification information, and the frequency domain size of each resource segment within the corresponding frequency domain resource pattern and the frequency domain attributes corresponding to each resource segment may be determined by using the pattern identifier.

[0097] For example, the start and end frequency domain resource indices of scheduled frequency domain resources are mapped based on the start and length indicator value SLIV of the frequency domain resource and the start and duration of the frequency domain bandwidth resource predefined in the protocol. In other words, network devices use frequency domain H / To set the frequency domain length of the S / NA, the starting resource block number and the number of resource blocks for the corresponding frequency domain resource can be determined by using an index value.

[0098] Referring to the second aspect, in some implementations of the second aspect, the first information includes identification information for at least one pattern set, the identification information for at least one pattern set is used to determine at least one target pattern set, the at least one target pattern set includes the first pattern, the setting of each pattern set includes at least one of a plurality of patterns, each pattern set has corresponding pattern set identification information, and the identification information for any two pattern sets is different.

[0099] Referring to the second aspect, in some implementations of the second aspect, the method includes transmitting third information used to configure at least one first slot, and mapping at least one first pattern to at least one first slot.

[0100] Referring to the second aspect, in some implementations of the second aspect, the first slot is a slot in a first time-domain periodicity, or the first slot is a slot corresponding to a time-domain resource that is a fourth resource in the first time-domain periodicity, the first time-domain periodicity corresponds to the setting periodicity of the first time-domain resource, the availability of the fourth resource is determined by second instruction information, and the second instruction information is transmitted by a first network device.

[0101] Optionally, the first slot may be any of the slots in the first time-domain periodicity.

[0102] It should be understood that the first slot here may be a non-TDM slot, or may be directly referred to as an FDM slot. The specific name of the first slot is not limited in this application. The first slot supports only one function, namely frequency division resource setting, which may be set for several slots. Furthermore, the number of first slots supporting this function is also not limited in this application.

[0103] It should be noted that the first slot is simply an implementation of time granularity. Alternatively, the first symbol, etc., may be determined in the first time segment. The specific time granularity is not limited in this application.

[0104] For example, the first periodicity may correspond to the setting periodicity of H / S / NA time domain resources in the first time segment, or the periodicity may be set individually in units of slots or absolute time, or a single system frame may be used as the periodicity. The method for determining the first periodicity is not limited herein.

[0105] Referring to the second aspect, in some implementations of the second aspect, the total number of slots in the first time segment and / or first periodicity is determined based on the subcarrier interval, and the number of slots corresponding to the first slot is determined based on the number of the first slot and / or the set of numbers of the first slot.

[0106] For example, the DU calculates the number of slots in the first periodicity based on the configured periodicity of the H / S / NA time-domain resource and the configured subcarrier interval, and then determines which slots are non-TDM slots based on the number of the first slots.

[0107] For example, the total number of slots in periodicity is determined by referring to the subcarrier interval of the initial bandwidth portion BWP of the DU cell, since the total number of slots in the system frame is constant at a given subcarrier interval.

[0108] Optionally, the reference subcarrier interval may be set individually, or it may refer to a subcarrier interval already set in other signaling or other application scenarios in other current protocols. This is not limited to the present invention.

[0109] Referring to the second aspect, in some implementations of the second aspect, the number of at least one pattern is the same as the number of first slots, or the number of at least one pattern is a positive integer multiple of the number of first slots, or the number of at least one pattern is less than the number of first slots.

[0110] Optionally, when H / S / NA frequency domain resources are mapped to the first slot, different frequency domain resource patterns may be mapped to the first slot. For example, an H frequency domain resource may be mapped to the first slot, or an NA frequency domain resource may be mapped to the first slot based on this resource configuration. In this case, the NA frequency domain resource takes precedence over the H frequency domain resource; that is, the availability of the frequency domain resource for the first node's DU in the first slot is changed from a resource that is definitely available to a resource that is not available. Specifically, in the mapping of frequency domain resources to time domain resources, H, S, and NA resources may be combined randomly, in particular according to the requirements for communication between the network device and the first node and / or terminal devices. This is not limited to the present invention.

[0111] Optionally, one of the H / S / NA frequency domain resources may be mapped to the first slot, or S+NA, i.e., the S frequency domain resource is first mapped to the first slot, and then the NA frequency domain resource is mapped to the S resource based on further instruction information, or S+H, H+NA, S+H+NA, etc. The resource mapping scheme is not limited in this application.

[0112] Optionally, the same frequency domain resource, for example, an H frequency domain resource, may be mapped to different time domain resources, for example, an S time domain resource and an NA time domain resource. This is not limited to the present invention.

[0113] Referring to the second aspect, in some implementations of the second aspect, the method includes transmitting fourth information, the fourth information indicating the resource availability of a third resource, for example, S-time domain resources and S-frequency domain resources.

[0114] Referring to the second aspect, in some implementations of the second aspect, the fourth information further indicates the resource availability of the fourth resource, i.e., the resource whose time-domain resource attribute is S.

[0115] Referring to the second aspect, in some implementations of the second aspect, the method includes transmitting fifth information indicating grouping information of frequency domain resources corresponding to a first slot, and transmitting sixth information indicating resource attributes of at least one frequency domain resource group.

[0116] It should be noted that the granularity and method of frequency domain resource partitioning may be RBG, the number of RBs, the bandwidth portion BWP, etc. This is not particularly limited in this application.

[0117] Referring to the second aspect, in some implementations of the second aspect, the method includes obtaining a first relation and / or a second relation, where the first relation is a correspondence between a first parameter and indication information for the availability of a first resource, where the first relation indicates resource availability for a first slot; and a second relation is a correspondence between a second parameter and indication information for the availability of a second resource, where the second relation indicates resource availability for a frequency domain resource in the first slot; and determining a first pattern based on the first relation and / or the second relation.

[0118] The first and second relationships may indicate the availability of all time-domain resources and the availability of all frequency-domain resources, and / or the resource availability of the first slot, i.e., the slot requiring frequency division multiplexing, and / or the availability of frequency-domain resources for the first slot. This is not particularly limited in this application.

[0119] Referencing the second aspect, in some implementations of the second aspect, the method includes transmitting seventh information, the seventh information comprising identification information for at least one instruction set, the identification information for at least one instruction set being used to determine at least one target instruction set, the at least one target instruction set comprising a first parameter and / or a second parameter, and the identification information for any two instruction sets being different; and determining resource attributes for one or more frequency domain resources of at least one first slot based on the at least one target instruction set.

[0120] In this application, the instruction information, configuration information, etc., may be carried without limitation in one of the following: wireless resource control signaling, media access control MAC layer signaling, and physical layer PHY signaling, or at least two combinations thereof. Wireless resource control signaling includes wireless resource control RRC signaling. MAC layer signaling includes MAC control element CE. Physical layer signaling includes downlink control information DCI, etc.

[0121] A wireless communication device is provided according to a third aspect. The device includes a transceiver unit configured to receive first information, the first information comprising first pattern instruction information, the first pattern being one of a plurality of patterns, each of which indicates a distribution of at least one resource in the frequency domain, the at least one resource comprising at least one of the following: first resource, second resource, and third resource, the first resource being a reliably available resource, the second resource being an unavailable resource, and the availability of the third resource being determined by the first instruction information, the first instruction information being transmitted by a first network device, and the resource distributions indicated by any two patterns being different; and a processing unit configured to determine resources for communication with a second network device and / or terminal device based on the first pattern, the transceiver unit further configured so that a first node communicates with a second network device and / or terminal device.

[0122] For example, if the first network device does not send first instruction information regarding the availability of the third resource, the third resource is not available to the DU cell by default.

[0123] It should be understood that this invention applies to wireless communication systems including relay nodes. The relay nodes may be IAB nodes or terminal devices, i.e., terminal devices with wireless relay functionality. The availability of the first, second, and third resources may be set for cells of the first node's distributed unit DU, or for the bandwidth portion BWP of the first node's distributed unit, or for some frequency domain resources of the first node's distributed unit DU, e.g., RBG. The first network device is a higher-level node of the first node, and the second network device is a lower-level node of the first node.

[0124] It should be noted that the first resource may be an H (hard) frequency domain resource indicating a frequency domain resource that is definitely available to the DU cell; the second resource may be an NA (not available) frequency domain resource indicating a resource that is unavailable to the DU cell but is available to the mobile terminal MT; and the third resource may be an S (soft) frequency domain resource indicating that the availability of the resource to the DU cell must be determined based on instruction information transmitted by the higher-level node.

[0125] In this embodiment of the present application, after further indication, the availability of S resources may be determined to be "available" or "unavailable," or to be determined to be "available" or "no availability indication." Availability indications may be set for one or more of the three TDD transmission direction settings: uplink, downlink, and flexible. For example, signaling may indicate that S uplink resources are indicated as available, while S downlink resources and S flexible resources are indicated as not available.

[0126] For example, when at least one resource is a first resource, the first node can communicate with terminal devices and / or lower relay nodes; when at least one resource is a second resource, the first node cannot communicate with terminal devices but can communicate with a first network device; or when at least one resource is a third node, the first node must determine, based on instructions from the first network device, whether the third node can be used to communicate with terminal devices and / or lower relay nodes.

[0127] Communicating with a second network device and / or terminal device based on the first pattern involves determining the resources for communication between the first node and the second network device and / or terminal device based on the first pattern, where it should be noted that the first node is a relay node.

[0128] It should be understood that the guard band between the MT and DU must be considered regardless of the solution for setting the frequency division pattern in this application, or the solution for setting the quasi-static frequency domain resource segmentation in the possible implementations described above, or the solution for setting multiple frequency domain resource block groups (RBGs) in the present art.

[0129] For example, constraints for determining the size of the protection bandwidth in frequency division (or frequency division pattern) configuration may be defined in the protocol or reported to the donor base station by the IAB. Constraints may include relationships between the protection bandwidth and the bandwidth of the DU or MT, relationships between the protection bandwidth and the transmission timing mode, or relationships between the protection bandwidth and the synchronization status.

[0130] It should be noted that the IAB's reporting to the donor base station may be done before the donor base station transmits the frequency division configuration to the IAB, or it may be done after the donor base station transmits the frequency division configuration to the IAB.

[0131] When reporting occurs after a donor base station has transmitted a frequency division configuration to the IAB, it can be understood that the donor base station initially configures the configuration for the IAB, but after the IAB receives the configuration, it realizes that the configuration does not satisfy the protected bandwidth requirements or the IAB's hardware capabilities, and therefore the IAB is triggered to report those constraints.

[0132] It should be further understood that different transmission timing schemes are defined in the protocol standard for different transmission modes, including cases #1, #6, and #7. The timing mode in case #1 requires that the transmission timing of the DU from an IAB node must be the same as that of other nodes, including the donor node, in order to satisfy the inter-site synchronization requirements of the TDD system. The timing mode in case #6 is used for spatial division transmission. The timing mode in case #7 is used for spatial division reception and may also be used for uplink full duplex.

[0133] The three timing types described above specify rules for determining the uplink transmission timing of the MT at an IAB node. In both timing type 2 and timing type 3, the uplink transmission timing of the MT is related to the downlink transmission timing of the DU. In this embodiment of the present application, it should be understood that the downlink transmission timing of the DU can be determined according to any method. For example, referring to timing type 1, the downlink transmission timing of the DU can be aligned with the downlink transmission timing of the IAB donor node. Specifically, the downlink transmission timing of the DU may be directed and coordinated by a higher node based on over-the-air synchronization (OTA synchronization) signaling, or the downlink transmission timing of the DU may be obtained based on the Global Positioning System GPS, or on other systems that support timing acquisition, such as the Global Navigation Satellite System (GNSS) or BeiDou.

[0134] It should be noted that different timing modes implicitly represent transmission modes, and the size of the protection bandwidth required can vary depending on the transmission mode. For example, full duplex generally requires more protection bandwidth than spatial division multiplexing. Generally, frequency division multiplexing is used to improve the isolation between the MT and DU during spatial division transmission or reception.

[0135] For example, frequency division multiplexing can generally be performed in the timing mode case and when the timing mode case is used.

[0136] In this application, constraints on the frequency division (or frequency division pattern) setting may be defined in the protocol or reported to the donor base station by the IAB. For example, the lowest frequency RB of the DU cell, the highest frequency RB of the DU cell, at least the initial bandwidth portion included in the frequency-divided DU cell, the lack of discontinuous frequency domain resources in the frequency-divided DU cell, up to X consecutive frequency domain resource segments of the frequency-divided DU cell, X consecutive RBs starting from the lowest frequency of the DU cell, and X consecutive RBs starting from the highest frequency of the DU cell.

[0137] Referring to the third aspect, in some implementations of the third aspect, the processing unit is further configured to determine resources for communication with a second network device and / or terminal device in a first time-domain resource based on a first pattern, and the transceiver unit is further configured for the first node to communicate with the second network device and / or terminal device in the first time-domain resource.

[0138] It should be understood that the first time-domain resource here may be understood as a set of time resources. The first time-domain resource may contain one or more slots. The slots may be contiguous or discontinuous. The first pattern is mapped to one or more slots and used for communication between the first node and the second network device and / or terminal device.

[0139] Optionally, different frequency-domain resource patterns may be mapped to one or more slots of the first time-domain resource.

[0140] Optionally, the first time domain resource may alternatively include one or more symbols, and the time granularity is not limited herein.

[0141] Referring to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to receive second information, the second information directing a first time-domain resource.

[0142] Referring to the third aspect, in some implementations of the third aspect, multiple patterns are configured by a donor network device, i.e., the transceiver unit is further configured to receive configuration information for one or more patterns transmitted by the donor network device. The configuration information for one or more patterns may be configured by the donor network device at one or more points in time. This is not particularly limited in the present invention.

[0143] Referring to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to transmit frequency division multiplexing configuration information to the donor network device before the donor network device configures multiple patterns, the frequency division multiplexing configuration information includes constraints set for the multiple patterns.

[0144] For example, multiple patterns may be predefined in the protocol instead. This is not limited to the present application.

[0145] Referring to the third aspect, in some implementations of the third aspect, each pattern configuration includes the frequency domain resource bandwidth of at least one resource, each pattern has corresponding pattern identification information, and the identification information of any two patterns is different.

[0146] Referring to the third aspect, in some implementations of the third aspect, each pattern configuration further includes a frequency domain resource attribute of at least one resource, where each frequency domain resource attribute is one of the first resource, the second resource, and the third resource.

[0147] It should be understood that the frequency domain resource patterns defined in the protocol may represent the attributes H / S / NA of multiple frequency domain resource segments, and / or the protocol may define frequency domain resource patterns of multiple lengths.

[0148] For example, if the frequency domain resources of a cell in the first node's distributed unit DU are divided into three segments, i.e., three sets of frequency domain resources, and each set contains contiguous frequency domain resources, then a pattern for dividing the corresponding frequency domain resources into three segments may be selected for mapping.

[0149] Optionally, if the protocol defines a pattern of frequency domain resources of only one length, for example, a pattern for dividing the frequency domain into five segments, then only resources having the first three resource attributes within each pattern should be mapped; that is, the first three resource attributes in each pattern correspond to the availability of each resource segment.

[0150] Referring to the third embodiment, in some implementations of the third embodiment, the setting of the frequency domain resource bandwidth includes the starting resource block number of at least one resource and the number of resource blocks of at least one resource.

[0151] For example, the frequency domain resource bandwidth may be set by the donor network device, or it may be predefined by the protocol. For example, the DU calculates the actual bandwidth to be directed based on the bandwidth actually used by the cell. This is not limited to the present invention.

[0152] For example, each pattern may have corresponding pattern identification information, and the frequency domain size of each resource segment within the corresponding frequency domain resource pattern and the frequency domain attributes corresponding to each resource segment may be determined by using the pattern identifier.

[0153] For example, the start and end frequency domain resource indices of scheduled frequency domain resources are mapped based on the start and length indicator value SLIV of the frequency domain resource and the start and duration of the frequency domain bandwidth resource predefined in the protocol. In other words, network devices use frequency domain H / To set the frequency domain length of the S / NA, the starting resource block number and the number of resource blocks for the corresponding frequency domain resource can be determined by using an index value.

[0154] Referring to the third aspect, in some implementations of the third aspect, the first information includes identification information for at least one pattern set, the identification information for at least one pattern set is used to determine at least one target pattern set, the at least one target pattern set includes the first pattern, the setting of each pattern set includes at least one of a plurality of patterns, each pattern set has corresponding pattern set identification information, and the identification information for any two pattern sets is different.

[0155] Referring to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to receive third information, the third information is used to set up at least one first slot, and the processing unit is further configured to map at least one first pattern to at least one first slot.

[0156] Referring to the third aspect, in some implementations of the third aspect, the first slot is a slot in a first time-domain periodicity, or the first slot is a slot corresponding to a time-domain resource that is a fourth resource in the first time-domain periodicity, the first time-domain periodicity corresponds to the setting periodicity of the first time-domain resource, the availability of the fourth resource is determined by second instruction information, and the second instruction information is transmitted by a first network device.

[0157] Optionally, the first slot may be any of the slots in the first time-domain periodicity.

[0158] It should be understood that the first slot here may be a non-TDM slot, or may be directly referred to as an FDM slot. The specific name of the first slot is not limited in this application. The first slot supports only one function, namely frequency division resource setting, which may be set for several slots. Furthermore, the number of first slots supporting this function is also not limited in this application.

[0159] It should be noted that the first slot is simply an implementation of time granularity. Alternatively, the first symbol, etc., may be determined in the first time segment. The specific time granularity is not limited in this application.

[0160] For example, the first periodicity may correspond to the setting periodicity of H / S / NA time domain resources in the first time segment, or the periodicity may be set individually in units of slots or absolute time, or a single system frame may be used as the periodicity. The method for determining the first periodicity is not limited herein.

[0161] Referring to the third embodiment, in some implementations of the third embodiment, the processing unit is further configured to determine the total number of slots in a first time segment and / or first periodicity based on the subcarrier interval, and the processing unit is further configured to determine the number of slots corresponding to a first slot based on the number of the first slot and / or the set of numbers of the first slot.

[0162] For example, the DU calculates the number of slots in the first periodicity based on the configured periodicity of the H / S / NA time-domain resource and the configured subcarrier interval, and then determines which slots are non-TDM slots based on the number of the first slots.

[0163] For example, the total number of slots in periodicity is determined by referring to the subcarrier interval of the initial bandwidth portion BWP of the DU cell, since the total number of slots in the system frame is constant at a given subcarrier interval.

[0164] Optionally, the reference subcarrier interval may be set individually, or it may refer to a subcarrier interval already set in other signaling or other application scenarios in other current protocols. This is not limited to the present invention.

[0165] Referring to the third aspect, in some implementations of the third aspect, the number of at least one pattern is the same as the number of first slots, or the number of at least one pattern is a positive integer multiple of the number of first slots, or the number of at least one pattern is less than the number of first slots.

[0166] Optionally, when H / S / NA frequency domain resources are mapped to the first slot, different frequency domain resource patterns may be mapped to the first slot. For example, an H frequency domain resource may be mapped to the first slot, or an NA frequency domain resource may be mapped to the first slot based on this resource configuration. In this case, the NA frequency domain resource takes precedence over the H frequency domain resource; that is, the availability of the frequency domain resource for the first node's DU in the first slot is changed from a resource that is definitely available to a resource that is not available. Specifically, in the mapping of frequency domain resources to time domain resources, H, S, and NA resources may be combined randomly, in particular according to the requirements for communication between the network device and the first node and / or terminal devices. This is not limited to the present invention.

[0167] Optionally, one of the H / S / NA frequency domain resources may be mapped to the first slot, or S+NA, i.e., the S frequency domain resource is first mapped to the first slot, and then the NA frequency domain resource is mapped to the S resource based on further instruction information, or S+H, H+NA, S+H+NA, etc. The resource mapping scheme is not limited in this application.

[0168] Optionally, the same frequency domain resource, for example, an H frequency domain resource, may be mapped to different time domain resources, for example, an S time domain resource and an NA time domain resource. This is not limited to the present invention.

[0169] Referring to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to receive fourth information, which indicates the resource availability of third resources, for example, S-time domain resources and S-frequency domain resources.

[0170] Referring to the third aspect, in some implementations of the third aspect, the fourth information further indicates the resource availability of the fourth resource, i.e., the resource whose time-domain resource attribute is S.

[0171] Referring to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to receive fifth information, the fifth information indicating grouping information of frequency domain resources corresponding to the first slot, and the transceiver unit is further configured to receive sixth information, the sixth information indicating resource attributes of at least one frequency domain resource group.

[0172] It should be noted that the granularity and method of frequency domain resource partitioning may be RBG, the number of RBs, the bandwidth portion BWP, etc. This is not particularly limited in this application.

[0173] Referring to the third aspect, in some implementations of the third aspect, the processing unit is further configured to acquire a first relation and / or a second relation, the first relation being a correspondence between a first parameter and indication information for the availability of a first resource, the first relation indicating resource availability for a first slot, the second relation being a correspondence between a second parameter and indication information for the availability of a second resource, the second relation indicating resource availability for a frequency domain resource in the first slot, and the processing unit is further configured to determine a first pattern based on the first relation and / or the second relation.

[0174] The first and second relationships may indicate the availability of all time-domain resources and the availability of all frequency-domain resources, and / or the resource availability of the first slot, i.e., the slot requiring frequency division multiplexing, and / or the availability of frequency-domain resources for the first slot. This is not particularly limited in this application.

[0175] Referring to the third aspect, in some implementations of the third aspect, the transceiver unit is further configured to receive seventh information, the seventh information comprising identification information of at least one instruction set, the identification information of at least one instruction set is used to determine at least one target instruction set, the at least one target instruction set comprises a first parameter and / or a second parameter, the identification information of any two instruction sets is different, and the processing unit is further configured to determine the resource attributes of one or more frequency domain resources of at least one first slot based on the at least one target instruction set.

[0176] In this application, the instruction information, configuration information, etc., may be carried without limitation in one of the following: wireless resource control signaling, media access control MAC layer signaling, and physical layer PHY signaling, or at least two combinations thereof. Wireless resource control signaling includes wireless resource control RRC signaling. MAC layer signaling includes MAC control element CE. Physical layer signaling includes downlink control information DCI, etc.

[0177] A wireless communication device is provided according to a fourth aspect. The device includes a transceiver unit configured to transmit first information, the first information comprising first pattern instruction information, the first pattern being one of a plurality of patterns, each of which indicates a distribution of at least one resource in the frequency domain, the at least one resource comprising at least one of the following: first resource, second resource, and third resource, the first resource being a reliably available resource, the second resource being an unavailable resource, and the availability of the third resource being determined by the first instruction information, the first instruction information being transmitted by a first network device, and the resource distributions indicated by any two patterns being different; and a processing unit configured to determine resources for communication with a first node and / or terminal device based on the first pattern, the first node being a relay node, and the transceiver unit further configured for the network device to communicate with the first node and / or terminal device.

[0178] For example, if the first network device does not send first instruction information regarding the availability of the third resource, the third resource is not available to the DU cell by default.

[0179] It should be understood that this invention applies to wireless communication systems including relay nodes. The relay nodes may be IAB nodes or terminal devices, i.e., terminal devices equipped with wireless relay functionality. The availability of the first, second, and third resources may be set for cells of the first node's distributed unit DU, or for the bandwidth part (BWP) of the first node's distributed unit, or for some frequency domain resources of the first node's distributed unit DU, e.g., RBG. The first network device is a higher-level node of the first node, and the second network device is a lower-level node of the first node.

[0180] It should be noted that the first resource may be an H (hard) frequency domain resource indicating a frequency domain resource that is definitely available to the DU cell; the second resource may be an NA (not available) frequency domain resource indicating a resource that is unavailable to the DU cell but is available to the mobile terminal MT; and the third resource may be an S (soft) frequency domain resource indicating that the availability of the resource to the DU cell must be determined based on instruction information transmitted by the higher-level node.

[0181] In this embodiment of the present application, after further indication, the availability of S resources may be determined to be "available" or "unavailable," or to be determined to be "available" or "no availability indication." Availability indications may be set for one or more of the three TDD transmission direction settings: uplink, downlink, and flexible. For example, signaling may indicate that S uplink resources are indicated as available, while S downlink resources and S flexible resources are indicated as not available.

[0182] For example, when at least one resource is a first resource, the first node can communicate with terminal devices and / or lower relay nodes; when at least one resource is a second resource, the first node cannot communicate with terminal devices but can communicate with a first network device; or when at least one resource is a third node, the first node must determine, based on instructions from the first network device, whether the third node can be used to communicate with terminal devices and / or lower relay nodes.

[0183] Communicating with the first node and / or terminal device based on the first pattern involves determining the resources for communication between the network device and the first node and / or terminal device based on the first pattern, where it should be noted that the first node is a relay node.

[0184] According to the solution provided herein, multiple frequency domain resource patterns are set up and defined. Each pattern includes at least one of the following resource types: “Reliably available,” “Unavailable,” and “Availability depends on further instructions from higher-level nodes.” The first pattern is indicated by using first information, and communication between network devices and first nodes and / or terminal devices is performed based on the first pattern.

[0185] It should be understood that the guard band between the MT and DU must be considered regardless of the solution for setting the frequency division pattern in this application, or the solution for setting the quasi-static frequency domain resource segmentation in the possible implementations described above, or the solution for setting multiple frequency domain resource block groups (RBGs) in the present art.

[0186] For example, constraints for determining the size of the protection bandwidth in frequency division (or frequency division pattern) configuration may be defined in the protocol or reported to the donor base station by the IAB. Constraints may include relationships between the protection bandwidth and the bandwidth of the DU or MT, relationships between the protection bandwidth and the transmission timing mode, or relationships between the protection bandwidth and the synchronization status.

[0187] It should be noted that the IAB's reporting to the donor base station may be done before the donor base station transmits the frequency division configuration to the IAB, or it may be done after the donor base station transmits the frequency division configuration to the IAB.

[0188] When reporting occurs after a donor base station has transmitted a frequency division configuration to the IAB, it can be understood that the donor base station initially configures the configuration for the IAB, but after the IAB receives the configuration, it realizes that the configuration does not satisfy the protected bandwidth requirements or the IAB's hardware capabilities, and therefore the IAB is triggered to report those constraints.

[0189] It should be further understood that different transmission timing schemes are defined in the protocol standard for different transmission modes, including cases #1, #6, and #7. The timing mode in case #1 requires that the transmission timing of the DU from an IAB node must be the same as that of other nodes, including the donor node, in order to satisfy the inter-site synchronization requirements of the TDD system. The timing mode in case #6 is used for spatial division transmission. The timing mode in case #7 is used for spatial division reception and may also be used for uplink full duplex.

[0190] The three timing types described above specify rules for determining the uplink transmission timing of the MT at an IAB node. In both timing type 2 and timing type 3, the uplink transmission timing of the MT is related to the downlink transmission timing of the DU. In this embodiment of the present application, it should be understood that the downlink transmission timing of the DU can be determined according to any method. For example, referring to timing type 1, the downlink transmission timing of the DU can be aligned with the downlink transmission timing of the IAB donor node. Specifically, the downlink transmission timing of the DU may be directed and coordinated by a higher node based on over-the-air synchronization (OTA synchronization) signaling, or the downlink transmission timing of the DU may be obtained based on the Global Positioning System GPS, or on other systems that support timing acquisition, such as the Global Navigation Satellite System (GNSS) or BeiDou.

[0191] It should be noted that different timing modes implicitly represent transmission modes, and the size of the protection bandwidth required can vary depending on the transmission mode. For example, full duplex generally requires more protection bandwidth than spatial division multiplexing. Generally, frequency division multiplexing is used to improve the isolation between the MT and DU during spatial division transmission or reception.

[0192] For example, frequency division multiplexing can generally be performed in the timing mode case and when the timing mode case is used.

[0193] In this application, constraints on the frequency division (or frequency division pattern) setting may be defined in the protocol or reported to the donor base station by the IAB. For example, the lowest frequency RB of the DU cell, the highest frequency RB of the DU cell, at least the initial bandwidth portion included in the frequency-divided DU cell, the lack of discontinuous frequency domain resources in the frequency-divided DU cell, up to X consecutive frequency domain resource segments of the frequency-divided DU cell, X consecutive RBs starting from the lowest frequency of the DU cell, and X consecutive RBs starting from the highest frequency of the DU cell.

[0194] Referring to the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to determine resources for communication with a first node and / or terminal device in a first time-domain resource based on a first pattern, and the transceiver unit is further configured for the network device to communicate with the first node and / or terminal device in the first time-domain resource.

[0195] It should be understood that the first time-domain resource here may be understood as a set of time resources. The first time-domain resource may contain one or more slots. The slots may be contiguous or discontinuous. The first pattern is mapped to one or more slots and used for communication between the first node and the second network device and / or terminal device.

[0196] Optionally, different frequency-domain resource patterns may be mapped to one or more slots of the first time-domain resource.

[0197] Optionally, the first time domain resource may alternatively include one or more symbols, and the time granularity is not limited herein.

[0198] Referring to the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to transmit second information, the second information directing a first time-domain resource.

[0199] Referring to the fourth aspect, in some implementations of the fourth aspect, multiple patterns are configured by a donor network device, i.e., the transceiver unit is further configured to allow the donor network device to transmit configuration information for one or more patterns. The configuration information for one or more patterns may be configured by the donor network device at one or more points in time. This is not particularly limited in the present invention.

[0200] Referring to the fourth aspect, in some implementations of the fourth aspect, before the donor network device sets up multiple patterns, the transceiver unit is further configured to allow the donor network device to receive frequency division multiplexing configuration information from the first node, the frequency division multiplexing configuration information includes constraints set for multiple patterns.

[0201] For example, multiple patterns may be predefined in the protocol instead. This is not limited to the present application.

[0202] Referring to the fourth aspect, in some implementations of the fourth aspect, each pattern configuration includes the frequency domain resource bandwidth of at least one resource, each pattern has corresponding pattern identification information, and the identification information of any two patterns is different.

[0203] Referring to the fourth aspect, in some implementations of the fourth aspect, each pattern configuration further includes a frequency domain resource attribute of at least one resource, where each frequency domain resource attribute is one of the first resource, the second resource, and the third resource.

[0204] It should be understood that the frequency domain resource patterns defined in the protocol may represent the attributes H / S / NA of multiple frequency domain resource segments, and / or the protocol may define frequency domain resource patterns of multiple lengths.

[0205] For example, if the frequency domain resources of a cell in the first node's distributed unit DU are divided into three segments, i.e., three sets of frequency domain resources, and each set contains contiguous frequency domain resources, then a pattern for dividing the corresponding frequency domain resources into three segments may be selected for mapping.

[0206] Optionally, if the protocol defines a pattern of frequency domain resources of only one length, for example, a pattern for dividing the frequency domain into five segments, then only resources having the first three resource attributes within each pattern should be mapped; that is, the first three resource attributes in each pattern correspond to the availability of each resource segment.

[0207] Referring to the fourth aspect, in some implementations of the fourth aspect, the setting of the frequency domain resource bandwidth includes the starting resource block number of at least one resource and the number of resource blocks of at least one resource.

[0208] For example, the frequency domain resource bandwidth may be set by the donor network device, or it may be predefined by the protocol. For example, the DU calculates the actual bandwidth to be directed based on the bandwidth actually used by the cell. This is not limited to the present invention.

[0209] For example, each pattern may have corresponding pattern identification information, and the frequency domain size of each resource segment within the corresponding frequency domain resource pattern and the frequency domain attributes corresponding to each resource segment may be determined by using the pattern identifier.

[0210] For example, the start and end frequency domain resource indices of scheduled frequency domain resources are mapped based on the start and length indicator value SLIV of the frequency domain resource and the start and duration of the frequency domain bandwidth resource predefined in the protocol. In other words, network devices use frequency domain H / To set the frequency domain length of the S / NA, the starting resource block number and the number of resource blocks for the corresponding frequency domain resource can be determined by using an index value.

[0211] Referring to the fourth aspect, in some implementations of the fourth aspect, the first information includes identification information for at least one pattern set, the identification information for at least one pattern set is used to determine at least one target pattern set, the at least one target pattern set includes the first pattern, the setting of each pattern set includes at least one of a plurality of patterns, each pattern set has corresponding pattern set identification information, and the identification information for any two pattern sets is different.

[0212] Referring to the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to transmit third information, the third information is used to set up at least one first slot, and the processing unit is further configured to map at least one first pattern to at least one first slot.

[0213] Referring to the fourth aspect, in some implementations of the fourth aspect, the first slot is a slot in a first time-domain periodicity, or the first slot is a slot corresponding to a time-domain resource that is a fourth resource in the first time-domain periodicity, the first time-domain periodicity corresponds to the setting periodicity of the first time-domain resource, the availability of the fourth resource is determined by second instruction information, and the second instruction information is transmitted by a first network device.

[0214] Optionally, the first slot may be any of the slots in the first time-domain periodicity.

[0215] It should be understood that the first slot here may be a non-TDM slot, or may be directly referred to as an FDM slot. The specific name of the first slot is not limited in this application. The first slot supports only one function, namely frequency division resource setting, which may be set for several slots. Furthermore, the number of first slots supporting this function is also not limited in this application.

[0216] It should be noted that the first slot is simply an implementation of time granularity. Alternatively, the first symbol, etc., may be determined in the first time segment. The specific time granularity is not limited in this application.

[0217] For example, the first periodicity may correspond to the setting periodicity of H / S / NA time domain resources in the first time segment, or the periodicity may be set individually in units of slots or absolute time, or a single system frame may be used as the periodicity. The method for determining the first periodicity is not limited herein.

[0218] Referring to the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to determine the total number of slots in a first time segment and / or first periodicity based on the subcarrier interval, and the processing unit is further configured to determine the number of slots corresponding to a first slot based on the number of the first slot and / or the set of numbers of the first slot.

[0219] For example, the DU calculates the number of slots in the first periodicity based on the configured periodicity of the H / S / NA time-domain resource and the configured subcarrier interval, and then determines which slots are non-TDM slots based on the number of the first slots.

[0220] For example, the total number of slots in periodicity is determined by referring to the subcarrier interval of the initial bandwidth portion BWP of the DU cell, since the total number of slots in the system frame is constant at a given subcarrier interval.

[0221] Optionally, the reference subcarrier interval may be set individually, or it may refer to a subcarrier interval already set in other signaling or other application scenarios in other current protocols. This is not limited to the present invention.

[0222] Referring to the fourth aspect, in some implementations of the fourth aspect, the number of at least one pattern is the same as the number of first slots, or the number of at least one pattern is a positive integer multiple of the number of first slots, or the number of at least one pattern is less than the number of first slots.

[0223] Optionally, when H / S / NA frequency domain resources are mapped to the first slot, different frequency domain resource patterns may be mapped to the first slot. For example, an H frequency domain resource may be mapped to the first slot, or an NA frequency domain resource may be mapped to the first slot based on this resource configuration. In this case, the NA frequency domain resource takes precedence over the H frequency domain resource; that is, the availability of the frequency domain resource for the first node's DU in the first slot is changed from a resource that is definitely available to a resource that is not available. Specifically, in the mapping of frequency domain resources to time domain resources, H, S, and NA resources may be combined randomly, in particular according to the requirements for communication between the network device and the first node and / or terminal devices. This is not limited to the present invention.

[0224] Optionally, one of the H / S / NA frequency domain resources may be mapped to the first slot, or S+NA, i.e., the S frequency domain resource is first mapped to the first slot, and then the NA frequency domain resource is mapped to the S resource based on further instruction information, or S+H, H+NA, S+H+NA, etc. The resource mapping scheme is not limited in this application.

[0225] Optionally, the same frequency domain resource, for example, an H frequency domain resource, may be mapped to different time domain resources, for example, an S time domain resource and an NA time domain resource. This is not limited to the present invention.

[0226] Referring to the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to transmit fourth information, which indicates the resource availability of a third resource, for example, S-time domain resources and S-frequency domain resources.

[0227] Referring to the fourth aspect, in some implementations of the fourth aspect, the fourth information further indicates the resource availability of the fourth resource, i.e., the resource whose time-domain resource attribute is S.

[0228] Referring to the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to transmit fifth information, the fifth information indicating grouping information of frequency domain resources corresponding to the first slot, and sixth information, the sixth information indicating resource attributes of at least one frequency domain resource group.

[0229] It should be noted that the granularity and method of frequency domain resource partitioning may be RBG, the number of RBs, the bandwidth portion BWP, etc. This is not particularly limited in this application.

[0230] Referring to the fourth aspect, in some implementations of the fourth aspect, the processing unit is further configured to acquire a first relation and / or a second relation, the first relation being a correspondence between a first parameter and indication information for the availability of a first resource, the first relation indicating resource availability for a first slot, the second relation being a correspondence between a second parameter and indication information for the availability of a second resource, the second relation indicating resource availability for a frequency domain resource in the first slot, and the processing unit is further configured to determine a first pattern based on the first relation and / or the second relation.

[0231] The first and second relationships may indicate the availability of all time-domain resources and the availability of all frequency-domain resources, and / or the resource availability of the first slot, i.e., the slot requiring frequency division multiplexing, and / or the availability of frequency-domain resources for the first slot. This is not particularly limited in this application.

[0232] Referring to the fourth aspect, in some implementations of the fourth aspect, the transceiver unit is further configured to transmit seventh information, the seventh information comprising identification information of at least one instruction set, the identification information of at least one instruction set being used to determine at least one target instruction set, the at least one target instruction set comprising a first parameter and / or a second parameter, the identification information of any two instruction sets being different, and the processing unit is further configured to determine resource attributes of one or more frequency domain resources of at least one first slot based on the at least one target instruction set.

[0233] In this application, the instruction information, configuration information, etc., may be carried without limitation in one of the following: wireless resource control signaling, media access control MAC layer signaling, and physical layer PHY signaling, or at least two combinations thereof. Wireless resource control signaling includes wireless resource control RRC signaling. MAC layer signaling includes MAC control element CE. Physical layer signaling includes downlink control information DCI, etc.

[0234] In accordance with the fifth aspect, a first node and / or terminal device is provided, which includes a processor and optionally further includes memory. The processor is configured to control transceivers to receive and transmit signals. The memory is configured to store computer programs. The processor is configured to call computer programs from memory and execute them so that the first node and / or terminal device performs any one of the first aspects or possible implementations thereof.

[0235] Arbitrarily, there is one or more processors and one or more memory locations.

[0236] Optionally, the memory may be integrated with the processor, or the memory and processor may be located separately.

[0237] Optionally, the first node and / or terminal device may further include a transceiver, which may specifically be a transmitter and a receiver.

[0238] In accordance with the sixth aspect, a network device is provided, including a processor and optionally further including memory. The processor is configured to control transceivers to receive and transmit signals. The memory is configured to store computer programs. The processor is configured to call computer programs from memory and execute them so that a first node and / or terminal device performs any one of the second aspect or a possible implementation thereof.

[0239] Arbitrarily, there is one or more processors and one or more memory locations.

[0240] Optionally, the memory may be integrated with the processor, or the memory and processor may be located separately.

[0241] Optionally, the first node and / or terminal device may further include a transceiver, which may specifically be a transmitter and a receiver.

[0242] A communication device provided in accordance with the seventh aspect includes a module or unit configured to implement one of the methods of the first aspect or a possible implementation of the first aspect, or a module or unit configured to implement one of the methods of the second aspect or a possible implementation of the second aspect.

[0243] In accordance with the eighth aspect, a communication system is provided, including a first node and / or terminal device configured to perform any one of the methods of the first aspect or a possible implementation thereof, and a network device configured to perform any one of the methods of the second aspect or a possible implementation thereof.

[0244] A computer-readable storage medium is provided according to the ninth aspect. The computer-readable storage medium stores a computer program or code. When the computer program or code is executed on a computer, the computer may perform any one of the first aspect or a possible implementation of the first aspect, or any one of the second aspect or a possible implementation of the second aspect.

[0245] A chip is provided according to a tenth aspect, comprising at least one processor. The at least one processor is coupled to memory. The memory is configured to store a computer program. The processor is configured to call a computer program from memory and execute the computer program so that a first node and / or terminal device on which the chip system is installed performs one of the first aspects or a possible implementation thereof, and a network device on which the chip system is installed performs one of the second aspects or a possible implementation thereof.

[0246] The chip may include an input circuit or interface configured to transmit information or data, and an output circuit or interface configured to receive information or data.

[0247] A computer program product is provided in accordance with the eleventh aspect. The computer program product includes computer program code. When the computer program code is executed by a network device, the first node and / or terminal device may perform any one of the first aspects or possible implementations thereof, and the network device may perform any one of the second aspects or possible implementations thereof.

[0248] A wireless communication method is provided according to a twelfth aspect. The method includes receiving configuration information, the configuration information indicating resource availability, the configuration information including identification information for a plurality of instruction sets, each instruction set including indications of the availability of a plurality of time-domain resources and / or frequency-domain resources, and determining the availability of frequency-domain resources and / or time-domain resources based on the configuration information.

[0249] A wireless communication method is provided according to a thirteenth aspect. The method includes transmitting configuration information, the configuration information indicating resource availability, the configuration information including identification information for a plurality of instruction sets, each instruction set including indications of the availability of a plurality of time-domain resources and / or frequency-domain resources, and determining the availability of frequency-domain resources and / or time-domain resources based on the configuration information.

[0250] Referring to the twelfth or thirteenth aspect, in some implementations, after receiving configuration information, the method further includes receiving first information. The first information may be the first information of the first or second aspect.

[0251] Referring to the twelfth or thirteenth embodiment, in some embodiments, the frequency domain resource availability instruction includes a resource availability instruction for at least one RB set group, each RB set group including a resource availability instruction for at least one slot RB set group.

[0252] Referring to the twelfth or thirteenth embodiment, in some embodiments, the frequency domain resource availability instruction includes a resource availability instruction for at least one slot, the at least one slot being a first slot, and the first slot further including a resource availability instruction for at least one RB set group.

[0253] Referring to the twelfth or thirteenth embodiment, in some embodiments, the set of instructions includes a first set of instructions and a second set of instructions, the first set of instructions corresponds to time-domain resources, the second set of instructions corresponds to availability instructions for frequency-domain resources, and the identification information of the first set of instructions is different from the identification information of the second set of instructions.

[0254] A wireless communication method and apparatus are provided according to the solution in the embodiments of the present application. A frequency division resource pattern is predefined and configured, then mapped to time-domain resources requiring frequency division multiplexing, and further, the availability of some or all resources within each frequency division slot is indicated by signaling, thereby allowing the resources of relay nodes to be configured. To avoid making the frequency division configuration overly flexible, constraints are imposed on the allocation of frequency division multiplexing resources, thereby allowing the network (e.g., donor base stations and IAB nodes) to handle the available bandwidth of DU cells in at least two ways: frequency division and non-frequency division, and to quasi-statically configure corresponding signal and channel resources, etc., for UEs in some bandwidth. This further reduces signaling overhead and improves system performance. In particular, to address the problem of coexistence of frequency-domain configuration instructions and time-domain configuration instruction sets, multiple possible resource availability instruction settings are provided to avoid confusion and interference between time-domain resource availability instructions and frequency-domain resource availability instructions. Furthermore, availability instruction settings can be configured for time-division and frequency-division resources based on an integrated signaling framework. [Brief explanation of the drawing]

[0255] [Figure 1] This is a schematic diagram of an example network architecture in accordance with the present invention. [Figure 2] This is a schematic diagram of another example of a network architecture in accordance with the present invention. [Figure 3] This is a schematic diagram of an example of the structure of an integrated access and backhaul IAB node in accordance with the present invention. [Figure 4] This is a schematic diagram of an example of a spatial partitioning multiplexing scenario according to the present invention. [Figure 5] This is a schematic diagram of an example of a frequency division multiplexing scenario according to the present invention. [Figure 6] This is a schematic diagram of another example of a frequency division multiplexing scenario according to the present invention. [Figure 7] This is a schematic diagram illustrating an example of resource utilization in a DU time domain resource configuration supported by the current protocol. [Figure 8] This is a schematic diagram illustrating another example of resource utilization in a DU time domain resource configuration supported by the current protocol. [Figure 9] This is a schematic diagram of yet another example of resource utilization in a DU time domain resource configuration supported by the current protocol. [Figure 10] This is a schematic diagram of an example of a wireless communication method according to the present invention. [Figure 11] This is a schematic diagram of another example of a wireless communication method according to the present invention. [Figure 12] This is a schematic diagram of an example of frequency domain H / S / NA pattern setting according to the present invention. [Figure 13] This is a schematic diagram of an example of H / S / NA pattern setting for frequency domain segmentation of a cell according to the present invention. [Figure 14] This is a schematic diagram of an example of mapping a frequency-domain H / S / NA pattern to a periodic non-TDM slot, in accordance with the present invention. [Figure 15] This is a schematic diagram of yet another example of a resource configuration method in accordance with the present invention. [Figure 16] This is a schematic diagram of an example in which several time-domain resources are configured as non-TDM slots according to the present invention. [Figure 17] This is a schematic diagram of an example of frequency domain segmentation of a non-TDM slot according to the present invention. [Figure 18] This is a schematic diagram illustrating an example of using signaling to demonstrate the availability of frequency domain resources, in accordance with the present invention. [Figure 19]This is a schematic diagram illustrating an example of the availability of frequency-domain resources in S-time-domain resources according to the present invention. [Figure 20] This is a schematic diagram of an example of a wireless communication device according to the present invention. [Figure 21] This is a schematic diagram of another example of a wireless communication device according to the present invention. [Figure 22] This is a schematic diagram of an example of a network device in accordance with the present invention. [Figure 23] This is a schematic diagram of an example of a terminal device according to the present invention. [Figure 24] This is a schematic diagram of yet another example of a wireless communication method according to the present invention. [Modes for carrying out the invention]

[0256] The following describes the technical solution of this application with reference to the attached drawings.

[0257] The technical solutions of the embodiments of this application may be applied to various communication systems such as Global System for Mobile communication (GSM), Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Universal Mobile Telecommunication system (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, and 5th Generation (5G) systems or New Radio (NR), and may also be applied to similar wireless communication systems, such as Wireless Fidelity (Wireless Cellular systems related to Fidelity (Wi-Fi) and the 3rd Generation Partnership Project (3GPP) may also be extended.

[0258] Generally, conventional communication systems have a limited number of connections they support and are easy to implement. However, with the development of communication technology, mobile communication systems not only support conventional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-everything (V2X) communication, vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, and vehicle-to-network (V2N) communication, Long Term Evolution-Vehicle (LTE-V), vehicle-to-everything, machine-type communication (MTC), and Internet of Things (Internet of It also supports Things (IoT), Long Term Evolution-Machine (LTE-M), and Machine to Machine (M2M).

[0259] The terminal devices of the embodiments of this application may be called user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user equipment, soft terminal, etc. Terminal devices include various handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to a wireless modem that have wireless communication capabilities. Terminals may be mobile stations (MS), subscriber units, cellular phones, smartphones, wireless data cards, personal digital assistant (PDA) computers, tablet computers, wireless modems, handheld devices (handsets), laptop computers, machine type communication (MTC) terminals, etc.

[0260] Alternatively, the terminal devices of the embodiments of the present application may include mobile phones, computers with wireless transceiver functionality, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical care, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld terminals, notebook computers, cordless phones or wireless local loop (WLL) stations, terminal devices in future 5G networks, and future advanced public terrestrial mobile network (PLMN).

[0261] Furthermore, the terminal device may alternatively be a terminal device in an Internet of Things (IoT) system. IoT is an important part of the future development of information technology. The main technical feature of IoT is connecting things to a network by using communication technology to implement intelligent networks for human-machine interconnection and thing-thing interconnection. It should be understood that the specific form of the terminal device is not limited to this application.

[0262] The network device of the embodiment of the present invention is a device deployed in a radio access network and configured to provide wireless communication functionality to terminal devices. The device includes, but is not limited to, a radio network controller (RNC), a base station controller (BSC), a home base station (e.g., a home evolved NodeB or home NodeB HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity system, a radio relay node, a radio backhaul node, a transmission point (TP), a transmission and reception point (TRP), etc., or it may be a gNB or transmission point (TRP or TP) in a 5G (e.g., NR) system, or one antenna panel or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or it may be a network node constituting a gNB or transmission point, e.g., a baseband unit (BBU) or a distributed unit (DU).

[0263] The network device in the embodiment of the present invention may be a macro base station, micro base station (also called a small cell), relay station, access point, etc., or a Base Transceiver Station (BTS) in a Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA) system, or a NodeB (NodeB, NB) in a broadband Code Division Multiple Access (WCDMA) system, or an evolved NodeB (eNb or eNodeB) in an LTE system, or a radio controller in a Cloud Radio Access Network (CRAN) scenario. Alternatively, the network device may be a relay station, access point, wearable device, in-vehicle device, network device in a future 5G network, network device in a future advanced public land mobile network (PLMN) network, etc.

[0264] In a network structure, network devices may include central unit (CU) nodes or distributed unit (DU) nodes, RAN devices including CU nodes and DU nodes, or RAN devices including CU control plane nodes (CU-CP nodes), CU user plane nodes (CU-UP nodes), and DU nodes. Network devices provide services to cells, and terminal devices communicate with cells by using transmission resources (e.g., frequency domain resources) allocated by the network devices. Cells may belong to macro base stations or to base stations corresponding to small cells. Small cells here may include metro cells, micro cells, pico cells, femto cells, etc. These small cells are characterized by low coverage and low transmission power and are applied to the provision of high-rate data transmission services.

[0265] Figure 1 is a schematic diagram of an example network architecture according to the present invention. As shown in Figure 1, the network architecture includes three types of devices: network devices (e.g., donor base stations), relay devices (e.g., IAB node 1 and IAB node 2), and terminal devices (e.g., UE1 and UE2). The relay devices are outside the planned coverage of the network devices. The distance between the relay devices and the network devices is greater than the distance between the terminal devices and the network devices. The link between the network devices and the relay devices is sometimes called a "backhaul (BH) link," and the link between the relay devices and the terminal devices is sometimes called an "access (AC) link."

[0266] It should be noted that the names of links between network devices and relay devices, between relay devices and network devices, and between relay devices and terminal devices are not limited in this application. Network devices may also be called "donor network devices," "donor base stations," or "relay devices." A donor base station may be an access network element comprising a complete base station, or it may be an access network element in the form of separate central units (CUs) and distributed units (DUs).

[0267] In embodiments of the present invention, the network device may be an IAB node or a node used for relay communication. The relay device may be deployed further away from the base station or access device than the terminal device, and the access device may be another relay device. Furthermore, the name of the relay device may be relay node (RN), relay transmission reception point (rTRP), or integrated access and backhaul node (IAB node). The upstream node of the relay node may be a gNB (gNB-DU, gNG-CU, etc.) or another relay node.

[0268] It should be understood that this invention applies to wireless communication systems having relay nodes. Figure 1 shows that relay devices are directly connected to network devices by using a radio air interface, although the IAB relay system may support multilevel relays. Specifically, an IAB node may establish a radio backhaul link with one or more higher-level nodes and access a donor base station by using one or more higher-level nodes. Similarly, one IAB node may further provide services to one or more lower-level nodes. A donor base station may communicate with IAB node 1, or it may communicate directly with user equipment UE1. Similarly, IAB node 1 may communicate with IAB node 2, or it may communicate with user equipment UE2.

[0269] Figure 2 is a schematic diagram of another example of a network architecture according to the present invention. As shown in Figure 2, the donor base station may be further divided into CUs and DUs in terms of function and logic, and the IAB node may be further divided into mobile-terminal (MT) modules and distributed unit (DU) modules in terms of function and logic.

[0270] The MT function is defined as a component similar to the UE. In IAB, MT is referred to as a function that resides on the IAB node. Since MT has functions similar to those of the common UE, it can be understood that IAB nodes use MT to access higher-level nodes or the network.

[0271] The DU function is related to the CU function. In 5G NR, the base station's functions are divided into two parts, known as CU-DU separation. From a protocol stack perspective, the CU includes the radio resource control (RRC) layer and the packet data convergence protocol (PDCP) layer of the original LTE base station, while the DU includes the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer. In a typical 5G base station deployment, the CU and DU may be physically connected by using optical fiber. Logically, there is a specifically identified F1 interface used for communication between the CU and DU. From a functional perspective, the CU is primarily involved in handling non-real-time protocols and services such as radio resource control and configuration, inter-cell mobility management, and bearer management, while the DU is primarily involved in handling physical layer protocols and real-time services such as scheduling, and the generation and transmission of physical signals. The functions of these protocol layers may be performed by one node or by multiple nodes. For example, in an advanced structure, a RAN device may include a central unit (CU) and distributed units (DU), and multiple DUs may be centrally controlled by a single CU.

[0272] For example, downlink transmission is performed between the CU and DU. F1-AP data packets generated by the CU are encapsulated within IP packets and transmitted via the air interface between multi-hop nodes (e.g., IAB node 1 and IABN node 2). After the data packets arrive at the target IAB node, they are processed at the adaptive layer of the MT module of the target IAB and then forwarded to the DU module of the local IAB for further processing. Finally, the F1-AP data packets are retrieved at the DU through parsing.

[0273] In the network architecture described above, signaling generated by the CU can be sent to terminal devices using the DU, or signaling generated by the terminal can be sent to the CU using the DU. The DU can transparently transmit signaling to terminal devices or the CU by directly encapsulating the signaling at the protocol layer without parsing it.

[0274] Figure 3 is a schematic diagram of an example of the structure of an integrated access and backhaul IAB node according to the present invention. As shown in Figure 3, the IAB node may be divided into MT modules and DU modules. An IAB node used to perform the functions of a terminal device may be called the mobile terminal MT side or MT function module, that is, the IAB node communicates with higher-level nodes by using the MT. An IAB node used as an access network device similar to a base station is called the distributed unit DU side or DU function module, that is, the IAB node communicates with higher-level nodes and UEs by using the DU. Both the MT and DU of the IAB node have a complete transceiver module, and an interface exists between the MT and the DU.

[0275] It should be noted that the MT and DU are logical modules. In fact, the MT and DU may share several submodules, for example, the transceiver antenna and the baseband processing module.

[0276] In the communication process, the air interface resources of the backhaul link and access link of the IAB node need to be set by the donor base station or the upper node. The resource setting of the IAB node may include MT resource setting and DU resource setting. The MT resource setting indicates the resource setting used when the MT of the IAB node communicates with the upper node. The MT resources of the IAB node can be set as three types: uplink (UL), downlink (DL), and flexible (F). The DU resource setting indicates the resource setting used when the DU of the IAB node communicates with the lower node. The DU resources of the IAB node can be set as three types: uplink (UL), downlink (DL), and flexible (F). The DU resource setting of the IAB node is instructed by the upper node or the donor base station by using interface signaling.

[0277] The above communication system and network architecture are only examples for description, and are for the purpose of more clearly describing the technical solution of the embodiments of the present application, and it should be understood that they do not constitute a limitation to the technical solution provided by the embodiments of the present application. Those skilled in the art can recognize that due to the evolution of the network architecture and the emergence of new service scenarios, the technical solution provided by the embodiments of the present application can also be applied to similar technical problems. For example, the communication system may further include core network devices. The core network devices may be connected to a plurality of access network devices and are configured to control the access network devices. Further, the data received from the network side (e.g., the Internet) may be distributed to the access network devices.

[0278] The specific structure of the execution body of the method provided in the embodiments of the present application is not particularly limited in the embodiments of the present application, provided that a program recording the code for the method provided in the embodiments of the present application can be executed to perform communication according to the method provided in the embodiments of the present application. For example, the execution body of the method provided in the embodiments of the present application may be a terminal device, a network device, a functional module capable of calling and executing a program on a terminal device or a network device, or a component (such as a chip or a circuit) applicable to a terminal device or a network device.

[0279] Furthermore, aspects and features of the present application may be implemented as a method, apparatus, or product using standard programming and / or engineering techniques. The term "product" as used in the present application covers computer programs that can be accessed by any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to, magnetic storage devices (such as hard disks, floppy disks, or magnetic tapes), optical disks (such as compact discs (CDs) or digital versatile discs (DVDs)), smart cards, and flash memory devices (such as erasable programmable read-only memories (EPROMs), cards, sticks, or key drives). Additionally, the various storage media described herein may represent one or more devices and / or other machine-readable media configured to store information. The term "machine-readable media" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0280] For ease of description, the following first describes the terms used in the embodiments of the present application.

[0281] 1. Protected Bandwidth: The protected bandwidth is a portion of the bandwidth resource reserved by the MT and DU while the frequency domain resource is in use. In other words, the MT and DU neither transmit nor receive signals in this bandwidth resource. In this way, the associated interference between the MT and DU can be avoided.

[0282] 2. Timing Modes: Different transmission timing schemes are defined in the protocol for each different transmission mode. There are three different timing types:

[0283] For example, in Timing Type 1: Standard, Case #1 timing, i.e., the DU transmission time, is used in time division multiplexing (TDM) mode. It should be understood that the IAB node's MT determines the uplink transmission timing based on the timing advance (TA) instruction information of the higher-level node. The IAB node's DU downlink transmission time is aligned with the downlink transmission time of the DUs of other nodes. In other words, the timing mode in Case #1 requires that the IAB node's DU transmission time must be the same as the transmission time of other nodes, including the donor node, in order to satisfy the inter-site synchronization requirements of the TDD system.

[0284] For example, timing type 2: Case #6 timing mode is used for spatial division transmission. It should be understood that the uplink transmission of the IAB node's MT needs to be aligned with the downlink transmission of the IAB node's DU.

[0285] For example, timing type 3: Case #7 timing mode is used for spatial division reception and may be used further for uplink full duplex. It should be understood that the uplink receive timing of the MT of the IAB node needs to be aligned with the downlink receive timing of the DU of the IAB node.

[0286] It should be noted that the implementation of spatial division multiplexing by the DU module and MT of an IAB node means that when the DU performs downlink transmission, the MT performs uplink transmission, and when the DU performs uplink reception, the MT performs downlink reception. In other words, when the DU performs downlink transmission, the MT performs uplink transmission, which can be concisely described as a spatial division multiplexing scenario in which the IAB node performs simultaneous transmission, and when the DU performs uplink reception, the MT performs downlink reception, which can be concisely described as a spatial division multiplexing scenario in which the IAB node performs simultaneous reception.

[0287] Furthermore, timing type 1 applies to time-division multiplexing of MT and DU of IAB nodes, timing type 2 applies to spatial division multiplexing scenarios where IAB nodes perform simultaneous transmission, and timing type 3 applies to spatial division multiplexing scenarios where IAB nodes perform simultaneous reception.

[0288] In summary, the three timing types described above specify rules for determining the uplink transmission timing of the MT at an IAB node. In both timing type 2 and timing type 3, the uplink transmission timing of the MT is related to the downlink transmission timing of the DU. In embodiments of the present application, it should be understood that the downlink transmission timing of the DU can be determined according to any method. For example, referring to timing type 1, the downlink transmission timing of the DU can be aligned with the downlink transmission timing of the IAB donor node. Specifically, the downlink transmission timing of the DU may be directed and coordinated by a higher node based on over-the-air synchronization (OTA synchronization) signaling, or the downlink transmission timing of the DU may be obtained based on a global positioning system (GPS), or on other systems that support timing acquisition, such as a global navigation satellite system (GNSS) or BeiDou.

[0289] Therefore, different timing modes implicitly represent transmission modes, and the size of the protection bandwidth required can vary depending on the transmission mode. For example, full-duplex generally requires more protection bandwidth than spatial division multiplexing.

[0290] 3. Constrained timing modes of frequency division multiplexing: Generally, frequency division multiplexing is used to improve the separation between the MT and DU during spatial division transmission or spatial division reception.

[0291] For example, frequency division multiplexing can generally be performed when timing mode case #6 and timing mode case #7 are used.

[0292] 4. Upstream Nodes: Upstream nodes are nodes that receive data or signals during uplink transmission, or nodes that transmit data or signals during downlink transmission. Nodes or network devices that provide wireless backhaul link resources are called upstream nodes of relay devices.

[0293] 5. Downlink Nodes: Downlink nodes are nodes that transmit data or signals during uplink transmission, or nodes that receive data or signals during downlink transmission. Nodes that use backhaul link resources to send data to or receive data from the network are called downlink nodes. For example, relay devices are called downlink nodes of network devices, and the network is a core network or other network that lies above the access network, such as the internet or a dedicated network.

[0294] 6. Access Link: An access link is a wireless link used by a node to communicate with its subordinate nodes, and includes uplink and downlink transmission links. Uplink transmission over an access link is also called uplink transmission of the access link, and downlink transmission over an access link is also called downlink transmission of the access link. Nodes include, but are not limited to, the IAB nodes mentioned above.

[0295] 7. Backhaul Link: A backhaul link is a wireless link used by a node to communicate with its upstream and / or downstream nodes, and includes uplink and downlink transmission links. Uplink transmission over a backhaul link is also called backhaul uplink transmission, and downlink transmission over a backhaul link is also called backhaul downlink transmission. Nodes include, but are not limited to, the aforementioned IAB nodes.

[0296] 8. Space Division Multiplexing (SDM): Space division multiplexing can be understood as enabling the reuse of the same frequency band in different spaces, transmitting signals simultaneously using multiple spatial orthogonal channels, and achieving capacity expansion. In short, space division multiplexing is receiving signals simultaneously from multiple directions. Space division multiplexing scenarios are widely used to improve spectral efficiency.

[0297] 9. Time Division Multiplexing (TDM): Time division multiplexing can be understood as achieving multi-channel transmission by transmitting different signals using different time segments of the same physical connection. In time division multiplexing, time is used as a parameter for signal segmentation. Therefore, all signals cannot overlap with each other along the time axis. In other words, the time applied to the entire channel to transmit information is divided into several slots, and these slots are assigned to each signal source used.

[0298] 10. Frequency Division Multiplexing (FDM): Frequency division multiplexing divides the entire bandwidth for channel transmission into several subbands (subchannels), with each subchannel transmitting one signal. Protection bands are set between subchannels for separation, so that the transmitted signals do not interfere with each other, and signals transmitted on subchannels can be used in parallel.

[0299] 11. Time-Division Resources and Frequency-Division Resources: Time-division resources mean that the same resource type (H / S / NA) is set for all frequency-domain resources in a slot or symbol of a DU cell. Frequency-division resources mean that the frequency-domain resources in a slot or symbol of a DU cell are further divided into multiple RB sets or RB set groups. The resource type (H / S / NA) can be set or indicated for each RB set or RB set group.

[0300] 12. Resource Availability Indication: The resource availability indication can be set by the donor base station for IAB MT and is used to dynamically indicate the availability of soft resources in the time domain. For example, in 3GPP Rel-16, the donor base station carries the AvailabilityCombinationsPerCell information element by using RRC signaling to set the availability of the soft time domain resources of the IAB MT. The specific implementation is as follows:

Number

[0301] AvailabilityCombinationsPerCell is used to set the resource availability indication of the soft time domain resources of the IAB DU cell. AvailabilityCombinationsPerCell includes the DU cell ID and the start position of the bits in the DCI signaling. For example, when the start position of the bits in the DCI signaling is the 3rd position, it indicates that the value indicated by the 3rd bit in the DCI 2_5 signaling received by the IAB MT is the availability of the soft time domain resources of the DU cell.

[0302] Specifically, AvailabilityCombinationsPerCell further contains multiple AvailabilityCombination-r16s, each AvailabilityCombination-r16 containing one ID, and DCI indicates one or more IDs. Each AvailabilityCombination-r16 corresponds to one resourceAvailability-r16 setting, each resourceAvailability-r16 containing a sequence of values ​​from 0 to 7, each value representing a resource availability indication for a single soft slot. The meanings of values ​​0 to 7 correspond to the table in the 3GPP standard protocol Ts 38.213 v16.8.0. For details, please refer to Table 4, which shows the mapping relationship between the availability type indication and resource availability indication value of soft resources within a slot.

[0303] Figure 4 is a schematic diagram of an example of a spatial division multiplexing scenario according to the present invention. The IAB system shown in Figure 4 includes a donor base station, IAB node 1, IAB node 2, UE1, and UE2. IAB node 2 is a child node of IAB node 1, and IAB node 2 may, but is not limited to, include an IAB node and a special terminal device. Optionally, the special terminal device may be a terminal device corresponding to a specific NR protocol version, for example, a terminal device corresponding to NR Release 16 / 17.

[0304] In an IAB scenario, the link for communicating with higher-level nodes is generally called a backhaul link, and the link for communicating with user equipment UEs is generally called an access link. In other words, transmission between nodes can be understood as a backhaul link, and transmission involving user equipment can be understood as an access link. The arrows in the diagram represent the spatial division receiving scenario of IAB. Specifically, IAB node 1 can simultaneously receive downlink signals transmitted by the donor base station via the backhaul link, receive uplink / downlink signals transmitted by its child node IAB node 2, and receive downlink signals transmitted by the user equipment UE via the access link. All arrows pointed in the reverse direction in the diagram represent the spatial division transmitting scenario of IAB. Specifically, IAB node 1 can simultaneously transmit an uplink signal to the donor base station, transmit uplink / downlink signals to its child node IAB node 2, and transmit a downlink signal to user equipment UE2.

[0305] For example, the link between the donor base station and IAB node 1, and the link between IAB node 1 and IAB node 2 are backhaul links. The link between UE1 and the donor base station, and the link between UE2 and IAB node 1 are access links.

[0306] It should be noted that frequency division multiplexing in the IAB scenario primarily refers to frequency division multiplexing between the IAB's MT module and the IAB's DU module. In other words, the IAB MT and IAB DU use different frequency domain resources. Since the MT and DU use frequency division resources, the mutual influence between the MT and DU's signal reception and transmission is mitigated.

[0307] It should be understood that the "simultaneous operation" of the MT and DU modules specifically includes a total of four scenarios as pairwise combinations of reception and transmission by the IAB MT and IAB DU, namely, the MT and DU may receive signals simultaneously or transmit signals simultaneously, or the DU may transmit a signal when the MT receives a signal, or the DU may receive a signal when the MT transmits a signal. Whether a specific scenario is supported depends on the hardware implementation of the device. "Simultaneous operation" here means that the MT module or DU module may receive / transmit signals in two ways simultaneously, not that it may receive a first signal and transmit a second signal at the same time.

[0308] Furthermore, within the context of IAB, frequency division multiplexing may further include frequency division multiplexing in dual connectivity scenarios. For example, an IAB node (MT) establishes connections to two devices simultaneously, i.e., the IAB has two higher-level nodes for backhaul transmission. When the two higher-level nodes communicate with the IAB DU by using different frequency domain resources within the frequency domain, this communication may also be called frequency division multiplexing.

[0309] Figure 5 is a schematic diagram of an example of a frequency division multiplexing scenario according to the present invention. As shown in Figure 5, frequency division multiplexing is performed between an IAB MT and an IAB DU, and the IAB MT and IAB DU are separated by the use of a protection band. For example, if the total bandwidth of the frequency domain resources is 200 MHz, the MT may occupy 100 MHz of frequency domain resources to communicate with higher-level nodes and the remaining 100 MHz of frequency domain resources to communicate with a slot in the DU cell or with a UE or lower-level IAB node.

[0310] Figure 6 is a schematic diagram of another example of a frequency division multiplexing scenario according to the present invention. As shown in Figure 6, frequency division multiplexing is performed between IAB MT1 and IAB MT2, and IAB MT1 and IAB MT2 are separated by the use of a protection band. The MTs may be connected to multiple upstream nodes simultaneously. Specifically, the IAB MTs use frequency division resources in backhaul links with two upstream nodes, and the two upstream nodes may schedule the MTs simultaneously for transmission. For example, if the total bandwidth of the frequency domain resources is 200 MHz, IAB MT1 may occupy 100 MHz of frequency domain resources to communicate with upstream node #1, and IAB MT2 may occupy the remaining 100 MHz of frequency domain resources to communicate with downstream IAB node #2.

[0311] It should be noted that IAB MT modules and IAB DU modules use time-division resources, and that they transmit resources using different orthogonal frequency division multiplexing (OFDM) symbols. It can be understood that IAB MT1 and IAB MT2 transmit signals at the first time point, and IAB DU cell slots transmit signals at the second time point.

[0312] In summary, the guard band between the MT and DU must be considered regardless of the solution for setting the frequency division pattern in this application, or the solution for setting the quasi-static frequency domain resource segmentation in the possible implementations described above, or the solution for setting multiple frequency domain resource block groups (RBGs) in the current art. Constraints for determining the size of the guard band may be defined in the protocol or reported to the donor base station by the IAB. Specifically, constraints for determining the size of the guard band in the frequency division (or frequency division pattern) setting may be considered from the following aspects:

[0313] (1) The relationship between the protection bandwidth and the bandwidth of the DU or MT.

[0314] For example, if the bandwidth of a DU cell is greater than or equal to X1 RBs, or if the bandwidth of an MT CC is greater than or equal to Y1 RBs, the protection bandwidth requires at least Z1 RBs. As another example, if the bandwidth of a DU cell is greater than or equal to X2 RBs, or if the bandwidth of an MT CC is greater than or equal to Y2 RBs, the protection bandwidth requires at least Z2 RBs. The RB size required by the protection bandwidth between the DU cell and the MT CC is not particularly limited in this application.

[0315] It should be noted that IAB nodes may report signaling in the following format:

[0316] For example, protection bandwidth requirements for frequency division multiplexing of DU cell #1 and MT serving cell #1 (where CC is a component carrier and is represented as a serving cell in the upper layer signaling configuration) are reported, and the protection bandwidth requirements include the cell identification of the DU, the serving cell identification of the MT, and at least one condition. The condition further includes the frequency domain bandwidth setting of the DU, the frequency domain bandwidth setting of the MT, and at least the required protection bandwidth. The frequency domain bandwidth setting includes one or more of the following: frequency domain RB count, frequency domain RB count, frequency domain RB count range, frequency domain RB count range, start frequency, end frequency, frequency domain RE count, frequency domain RE count range, subcarrier spacing, etc.

[0317] For example, signaling may include, but is not limited to, the following forms:

number

[0318] (2) For example, the relationship between the protection bandwidth and the transmission timing mode.

[0319] For example, when the IAB operates in the timing mode of case #6, the protection bandwidth of X RBs needs to be reserved for the frequency-division MT or DU resources. As another example, when the IAB operates in the timing mode of case #7, the protection bandwidth of Y RBs needs to be reserved for the frequency-division MT or DU resources. As yet another example, when the IAB MT is performing reception and the DU is performing transmission, or when the IAB MT is performing transmission and the DU is performing reception, the protection bandwidth of Z RBs needs to be reserved for the frequency-division MT or DU resources. The sizes of X RBs, Y RBs, and Z RBs are not particularly limited in this application.

[0320] It should be noted that Timing Type 2: Case #6 may be replaced by the protocol description "DU performs a transmit while IAB MT is performing a transmit," and Timing Type 3: Case #7 may be replaced by the protocol description "DU performs a receive while IAB MT is performing a receive."

[0321] (3) For example, the relationship between the protection bandwidth and the synchronization status.

[0322] For example, if the time of the MT is aligned with that of the DU, or if the transmission timing offset between the MT and the DU is less than X1, the required protection bandwidth is Y1 RBs. In this case, there is no inter-carrier interference between the DU and the MT, and the protection bandwidth between the DU and the MT is relatively small, i.e., Y1 is relatively small. As another example, if the time of the MT is not perfectly aligned with that of the DU, or if the transmission timing offset between the MT and the DU is greater than X2, the required protection bandwidth is Y2 RBs. Compared to Y1, Y2 is slightly larger. X1 and X2 can take units such as milliseconds, microseconds, nanoseconds, Ts (any unit of time in the protocol), etc.

[0323] It should be noted that the IAB's report to the donor base station may occur before the donor base station transmits the frequency division configuration to the IAB, or after the donor base station transmits the frequency division configuration to the IAB. If the IAB reports to the donor base station after the donor base station has transmitted the frequency division configuration to the IAB, the donor base station will initially configure the configuration for the IAB, but after the IAB receives the configuration, the IAB may realize that the configuration does not satisfy the protected bandwidth requirements or the IAB's hardware capabilities, and therefore the IAB may be triggered to report those constraints, and the donor base station may reconfigure the frequency division (or frequency division pattern) configuration based on those constraints.

[0324] Furthermore, in the embodiments of the present invention, the constraints for setting the frequency division (or frequency division pattern) may be defined in a protocol, or the IAB may report the constraints for setting the frequency division (or frequency division pattern) to the donor base station, which then performs the frequency division (or frequency division pattern) setting based on the constraints.

[0325] For example, the available resources of a DU cell after frequency division may include one or more of the following: (1) The DU cell must include the lowest frequency RB; (2) The DU cell must include the highest frequency RB; (3) The DU cell contains X consecutive RBs starting from the lowest frequency; (4) The DU cell contains X consecutive RBs starting from the highest frequency; (5) The frequency-divided DU cell has at least X consecutive available RBs or REs (where X is a positive integer); (6) The DU cell after frequency division must include at least the initial bandwidth portion (initial BWP): For example, the initial bandwidth portion may be the initial uplink bandwidth portion (UL BWP), or the initial bandwidth portion may be the initial downlink bandwidth portion (DL BWP), or the initial bandwidth portion may be the larger or smaller of DL BWP and UL BWP; (7) The DU cell after frequency division cannot have discontinuous frequency domain resources; (8) The DU cell after frequency division can be divided into up to X consecutive frequency domain resources: For example, the value of X here relates to the bandwidth of the DU cell; for instance, a 100 MHz bandwidth may be divided into two frequency-domain resource segments, and a 200 MHz bandwidth may be divided into four consecutive frequency-domain resource segments. (9) The DU cell after frequency division includes at least a single-sideband (SSB) bandwidth; (10) The frequency-division DU cell includes at least the bandwidth of a physical random access channel (PRACH) resource; (11) The frequency-division DU cell includes at least the bandwidth occupied by the common physical uplink control channel (common PUCCH) resource; (12) The DU cell after frequency division includes at least the bandwidth of control resource set #0, CORESET 0; and (13) The DU cell after frequency division includes at least the bandwidth occupied by system information block #1 (SIB 1).

[0326] The aforementioned cases are merely illustrative examples and should not be considered as limitations on the solution provided in this application.

[0327] With the continuous development of mobile communication technology, spectrum resources are becoming increasingly insufficient. Base stations will be deployed more densely in the future to improve spectrum utilization. Furthermore, denser deployment can further avoid coverage holes. In conventional cellular network architectures, base stations are connected to the core network by using optical fiber. However, optical fiber deployment is costly in many scenarios. Wireless relay nodes (RNs) can establish connectivity to the core network via wireless backhaul links to reduce some of the optical fiber deployment costs.

[0328] Generally, a relay node establishes a wireless backhaul link to one or more upstream nodes and accesses the core network through these upstream nodes. Upstream nodes may exert control over relay nodes by using various types of signaling (e.g., data scheduling, timing modulation, and power control). Furthermore, relay nodes may also provide services to multiple downstream nodes. Upstream nodes of a relay node may be base stations or other relay nodes. Downstream nodes of a relay node may be UEs or other relay nodes. In some cases, upstream nodes may also be called upstream nodes, and downstream nodes may also be called downstream nodes.

[0329] In-band relays are relay solutions where backhaul and access links share the same frequency band. Because no additional spectral resources are used, in-band relays offer advantages such as high spectral efficiency and low deployment costs. In-band relays generally have half-duplex constraints. Specifically, when a relay node receives a downlink signal transmitted by an upstream node, it cannot transmit the downlink signal to a downstream node, or when a relay node receives an uplink signal transmitted by a downstream node, it cannot transmit the uplink signal to an upstream node. In NR, in-band relay solutions are called integrated access and backhaul (IAB), and relay nodes are called IAB nodes.

[0330] When an IAB node is functioning correctly, spatial division multiplexing or frequency division multiplexing is performed on resources within the access link and backhaul link. A time division multiplexing TDM scenario is used as an example. The backhaul link and access link operate at different times. Therefore, the IAB node needs to switch between receiving and transmitting on the backhaul link and receiving and transmitting on the access link. The IAB node has the highest resource utilization when seamless switching occurs between the backhaul link and the access link, that is, when the symbols within the access link and backhaul link are continuous. However, due to various factors such as power amplifier turn-on / off times, transmission distance, and non-ideal synchronization, seamless switching cannot be achieved between the backhaul link and the access link. In this case, the IAB node needs to determine the available and / or unavailable sets of symbols within the backhaul link and the access link.

[0331] The following first describes the technical solutions in the protocol relevant to the embodiments of this application.

[0332] Figure 7 is a schematic diagram of an example of resource utilization in a DU time-domain resource configuration supported by the current protocol Rel-16. As shown in Figure 7, the horizontal and vertical coordinates represent time and frequency, respectively, i.e., time-domain resources and frequency-domain resources. For the entire cell, i.e., cell global ID (CGI) 1, H, S, S, and NA time-domain resources are configured separately.

[0333] It should be noted that hard (H) time-domain resources are resources that are reliably available to the DU, and the MT generally does not use time-domain resources for communication; unavailable (NA) time-domain resources are resources that are unavailable to the DU, and the MT may use time-domain resources for communication; and the availability of soft (S) time-domain resources to the DU mainly depends on further instructions from higher-level nodes.

[0334] For example, the horizontal coordinate can be considered as the setting of four different time-domain resources for a cell. Specifically, the first time-domain resource of a DU cell is always available, the availability of the second and third time-domain resources depends on instructions from the higher-level node, and the fourth slot resource is unavailable. For MTs, only uplink / downlink transmission direction settings exist, and H / S / NA resources are not set. Since the higher-level node knows the resource settings of the lower-level node, the higher-level node does not schedule the MT with the first time-domain resource to avoid collisions between the MT and DU. The DU of the higher-level node sends downlink control information (DCI) signaling to the lower-level node to further indicate whether the second and third time-domain resources are available to the DU. For the fourth time-domain resource, the MT may choose to perform scheduling or not perform scheduling based on transmission requirements.

[0335] Figure 8 is a schematic diagram of another example of resource utilization in DU time-domain resource configuration supported by the current protocol Rel-17. As shown in Figure 8, the horizontal and vertical coordinates represent time and frequency, respectively, i.e., time-domain resources and frequency-domain resources. In this solution, the bandwidth of the entire original cell is first divided into multiple parts in the frequency domain, and the bandwidth values ​​of the parts may differ. Specifically, frequency-domain resources are segmented and refined to the frequency-domain resource block group RBG granularity (e.g., resource block group 1 and resource block group 2), and then time-domain H / S / NA are configured at their respective smaller frequency-domain granularities.

[0336] For example, the horizontal coordinate can be considered as the setting of four different slot resources within a cell. For resource block group 1, the first time-domain resource is definitely available, the availability of the second and third time-domain resources depends on the instructions of the higher-level node, and the fourth slot resource is unavailable. For resource block group 2, the first and second time-domain resources are definitely available, the availability of the third time-domain resource depends on the instructions of the higher-level node, and the fourth time-domain resource is unavailable.

[0337] In this solution, it should be noted that S-time domain resources need to be indicated, and S-frequency domain resources are converted to S-time domain resources in the RBG or equivalent. S-frequency domain resources do not need to be further defined or indicated. In other words, the current physical layer DCI signaling for S-time domain resources can be reused to indicate whether S-frequency domain resources are available to the DU.

[0338] The time-domain resource configuration solution shown in Figure 7 targets a DU cell, and this implementation targets frequency-domain resource segments within a DU cell; that is, the resource types of the original DU cell are further refined to RBG granularity, which should be understood. Furthermore, this implementation is not truly dynamic frequency partitioning. There are no “dynamic” frequency-domain resources. The availability of some frequency-domain resources does not depend on physical layer signaling indications. Instead, dynamic frequency partitioning is implemented based on the original dynamic time-partitioning framework and quasi-static frequency-domain resource partitioning. Physical layer signaling only indicates the availability of time-domain resources. In other words, quasi-static frequency-domain resource partitioning means that the frequency-domain resources for the entire cell are fixed, and whether some frequency-domain resources within a slot are available to lower nodes cannot be truly indicated, but whether a group of frequency-domain resources within a slot is available to lower nodes.

[0339] Figure 9 is a schematic diagram of yet another example of resource utilization in DU time-domain resource configuration supported by the current protocol Rel-17. As shown in Figure 9, the horizontal and vertical coordinates represent time and frequency, respectively, i.e., time-domain resources and frequency-domain resources. First, H / S / NA time-domain resources are configured corresponding to the solution shown in Figure 7. Based on this, frequency-domain H / S / NA resources are configured. For example, frequency-domain resources are segmented and refined to resource block group RBG granularity (e.g., resource block group 1, resource block group 2, and resource block group 3), and then frequency-domain H / S / NA resources are configured at their respective smaller frequency-domain granularities. Thus, H / S / NA frequency-domain resources may take precedence over H / S / NA time-domain resources.

[0340] For example, the horizontal coordinate can be considered as the setting of four different slot resources within a cell. After the H / S / NA time-domain resources and H / S / NA frequency-domain resources are set, for resource block group 1, the first H time-domain resource is overwritten by the NA frequency-domain resource, and "Time-domain resource is definitely available" is changed to "Frequency-domain resource is unavailable", the second S time-domain resource is overwritten by the H frequency-domain resource, and "Availability of time-domain resource depends on instructions from the higher node" is changed to "Frequency-domain resource is definitely available", and for resource block group 2, the third S time-domain resource is overwritten by the NA frequency-domain resource, and "Availability of time-domain resource depends on instructions from the higher node" is changed to "Frequency-domain resource is unavailable".

[0341] In the frequency domain resource configuration solution shown in Figure 8, it should be noted that there are no S-frequency domain resources, and the availability of some frequency domain resources does not depend on physical layer signaling instructions. However, in the implementation shown in Figure 9, the H / S / NA frequency domain resources of the DU need to be defined and instructed. Therefore, frequency domain resource configuration may take precedence over time domain configuration.

[0342] In the solutions shown in Figures 8 and 9, it should be understood that the resource type of the original DU cell is further refined to RBG granularity. For frequency domain resource segments within a DU cell, frequency division multiplexing is implicitly configured by default, and H / S / NA must be configured multiple times within each slot. Time division can be implemented by configuring multiple resource block group RBGs within the same slot or on the same symbol as NA / H, but the H / S / NA configuration performed for each RBG in the aforementioned configuration solution is redundant and complex when spatial division multiplexing or frequency division multiplexing does not need to be performed most of the time in the system. For S resources that do not require frequency division, further signaling instructions are required. Therefore, the DCI signaling overhead is high. Furthermore, in actual applications, frequency division configuration and instructions do not need to be overly flexible. Whether frequency division resources are supported depends on aspects such as device hardware implementation, and unnecessary overhead is added when the dynamic instructions for frequency division configuration and S resource availability are overly flexible.

[0343] In summary, when a system does not perform time-division multiplexing or frequency-division multiplexing for most time resources, reducing signaling overhead, particularly configuration overhead and the overhead for dynamically directing S resources, is an urgent issue that needs to be addressed. Furthermore, unlike the fixed division of time-domain resources based on slots, the division of frequency-domain resources is relatively flexible. Avoiding the problems of complex and redundant configurations and excessively high overhead resulting from overly flexible configurations of frequency-domain resources is also an urgent issue that needs to be addressed.

[0344] Potential challenges in the following aspects can arise when the frequency division multiplexing resource configuration is excessively flexible.

[0345] Firstly, variable bandwidth can make it difficult for the UE to measure periodic reference signals, such as tracking reference signals (TRS). TRS can be used for time and frequency offset tracking and can be transmitted periodically or aperiodically. When the TRS is transmitted aperiodically, quasi-co-location (QCL) information of the TRS may be recognized.

[0346] It should be noted that TRS is generally transmitted using a large bandwidth, and the UE measures the TRS and uses it as a QCL Type-A reference source for data demodulation. The QCL Type-A setting is {Doppler offset, Doppler spread, mean delay, delay spread}. Furthermore, the frequency division of MT and DU causes changes in the bandwidth of the DU cell and also in the bandwidth of the periodic TRS, and the UE is affected because the UE's TRS resources are set quasi-statically and generally require a large bandwidth. Similarly, the impact on signals such as single-sideband SSB must also be considered, as SSB is used as a cell-level signal and it must be ensured that the DU cell can transmit SSB with the corresponding bandwidth resources.

[0347] Secondly, the variable bandwidth affects the reception by the DU of signals such as the uplink sounding reference signal (SRS) and physical uplink control channel (PUCCH) transmitted by the UE.

[0348] It should be noted that frequency hopping is typically required for the UE to transmit PUCCH and SPS in order to increase the UE's transmission power, and the UE's uplink coverage performance is improved by using channel diversity. Furthermore, both frequency hopping and frequency domain resources for transmitting SRS and PUCCH are configured quasi-statically, i.e., configured by the CU for the UE using RRC signaling. Additionally, frequency division can cause the UE to be unable to receive signals on the resources from which it transmits SRS and PUCCH. The UE's uplink coverage performance is significantly affected when PUCCH and SRS are configured for the UE from the outset based on the frequency domain resources (narrowband) of the DU after frequency division.

[0349] In summary, constraints must be imposed on the allocation of frequency division multiplexing resources. When frequency division is not available, the network (IAB and donor base stations) can handle the available bandwidth of DU cells in at least two ways: frequency division and non-frequency division, and quasi-statically configure the UE with corresponding signal and channel resources such as CORESET, PUCCH, TRS, and SRS in a few bandwidths, e.g., two or three relatively small bandwidths, to avoid excessively high signaling overhead and the degradation of system performance and impact on normal communication caused by the UE's inability to remember excessive resource configurations.

[0350] Based on this, the present invention provides an IAB resource frequency division and direction method. The specific allocation of frequency domain resources in several non-TDM slots is set based on a predefined frequency division resource pattern, and the availability of some or all resources in each non-TDM slot is indicated based on a newly designed dynamic signaling. In this solution, the predefined and set frequency division resources can be set and indicated for some or all time domain resources. Since a frequency domain pattern is set, differentiated setting and direction of available frequency domain resources RBG by the DU is avoided for each FDM slot, reducing resource setting complexity and signaling overhead.

[0351] The following describes in detail the wireless communication method of the embodiment of this application with reference to the attached drawings.

[0352] Figure 10 is a schematic diagram of an example of an IAB resource frequency division and instruction method according to an embodiment of the present application. A specific implementation procedure 1000 includes the following steps.

[0353] S1010. A network device (e.g., a donor base station) transmits the first information to a first node (e.g., a first IAB node) and / or a terminal device (e.g., a UE). Correspondingly, the first node receives the first information from the network device.

[0354] The first information includes instruction information for a first pattern, the first pattern being one of several patterns, each of which indicates the distribution of at least one resource in the frequency domain, the at least one resource including at least one of the following resources: first resource, second resource, and third resource, the first resource being a reliably available resource, the second resource being an unavailable resource, and the availability of the third resource being determined by the first instruction information, the first instruction information being transmitted by a first network device, and the resource distributions indicated by any two patterns being different.

[0355] In possible implementations, if the first network device does not transmit first instruction information regarding the availability of the third resource, the third resource is unavailable to the DU cell by default.

[0356] For example, the availability of the first, second, and third resources may be set for the cells of the first node's distributed unit DU, or for the bandwidth portion BWP of the first node's distributed unit, or for some frequency domain resources of the first node's distributed unit DU, such as the frequency domain resource block group RBG. The first network device is an upper node of the first node, and the second network device is a lower node of the first node.

[0357] It should be understood that multiple patterns may be configured by network devices, or that multiple patterns may be predefined in a protocol. This is not limited to the present invention.

[0358] For example, multiple patterns are configured by a donor network device; that is, configuration information for one or more patterns transmitted by the donor network device is received. The configuration information for one or more patterns may be configured by the donor network device at one or more points in time. This is not particularly limited in this application.

[0359] In a possible implementation, before the donor network device configures multiple patterns, the donor network device receives frequency division multiplexing configuration information transmitted by the first node, which includes constraints set for the multiple patterns.

[0360] For example, a frequency domain resource pattern defined in a protocol may represent the attributes H / S / NA of multiple frequency domain resource segments, and / or a frequency domain resource pattern of multiple lengths may be defined in a protocol.

[0361] As an example, and not an limitation, a network device may determine multiple frequency domain patterns. The first resource may be an H (hard) frequency domain resource indicating a frequency domain resource that is definitely available to the DU cell. The second resource may be an NA (not available) frequency domain resource indicating a resource that is unavailable to the DU cell but is available to a mobile-termination (MT). The third resource may be an S (soft) frequency domain resource indicating that the availability of the resource to the DU cell must be determined based on instruction information transmitted by an upper node. In other words, the frequency domain resource attribute of at least one resource indicated by each pattern includes at least one of the following: H, S, and NA.

[0362] In this embodiment of the present application, after further indication, the availability of S resources may be determined to be "available" or "unavailable," or to be determined to be "available" or "no availability indication." Availability indications may be set for one or more of the three TDD transmission direction settings: uplink, downlink, and flexible. For example, signaling may indicate that S uplink resources are indicated as available, while S downlink resources and S flexible resources are indicated as not available.

[0363] For example, when at least one resource is a first resource, the first node can communicate with terminal devices and / or lower relay nodes; when at least one resource is a second resource, the first node cannot communicate with terminal devices but can communicate with a first network device; or when at least one resource is a third node, the first node must determine, based on instructions from the first network device, whether the third node can be used to communicate with terminal devices and / or lower relay nodes.

[0364] In a possible implementation, each pattern configuration includes the frequency domain resource bandwidth of at least one resource, each pattern has corresponding pattern identification information, and the identification information of any two patterns is different.

[0365] In a possible implementation, each pattern configuration further includes a frequency domain resource attribute of at least one resource, where each frequency domain resource attribute is one of the first resource, the second resource, and the third resource.

[0366] It should be understood that the frequency domain resource patterns defined in the protocol may represent the attributes H / S / NA of multiple frequency domain resource segments, and / or the protocol may define frequency domain resource patterns of multiple lengths.

[0367] For example, if the frequency domain resources of a cell in the first node's distributed unit DU are divided into three segments, i.e., three sets of frequency domain resources, and each set contains contiguous frequency domain resources, then a pattern for dividing the corresponding frequency domain resources into three segments may be selected for mapping.

[0368] It should be noted that the granularity and method of frequency domain resource partitioning may be RBG, the number of RBs, the bandwidth portion BWP, etc. This is not particularly limited in this application.

[0369] Optionally, if the protocol defines a pattern of frequency domain resources of only one length, for example, a pattern for dividing the frequency domain into five segments, then only resources having the first three resource attributes within each pattern should be mapped; that is, the first three resource attributes in each pattern correspond to the availability of each resource segment.

[0370] In a possible implementation, the frequency domain resource bandwidth setting includes the starting resource block number of at least one resource and the number of resource blocks of at least one resource.

[0371] For example, the frequency domain resource bandwidth may be set by the donor network device, or it may be predefined by the protocol. For example, the DU may calculate the actually directed bandwidth based on the bandwidth actually used by the cell. This is not limited to the present invention.

[0372] For example, if the frequency domain resources of a cell in the first node's distributed unit DU are divided into three segments, i.e., three sets of frequency domain resources, and each set contains contiguous frequency domain resources, then a pattern for dividing the corresponding frequency domain resources into three segments may be selected for mapping.

[0373] In a possible implementation, each pattern may have corresponding pattern identification information, and the frequency domain size of each resource segment within the corresponding frequency domain resource pattern and the frequency domain attributes corresponding to each resource segment may be determined by using the pattern identifier.

[0374] For example, if a protocol defines a pattern of frequency domain resources of only one length, such as a pattern for dividing the frequency domain into five segments, then only resources having the first three resource attributes within each pattern need to be mapped; that is, the first three resource attributes in each pattern correspond to the availability of each resource segment.

[0375] As another example, each pattern may have corresponding pattern identification information, and the frequency domain size of each resource segment within the corresponding frequency domain resource pattern and the frequency domain attributes corresponding to each resource segment may be determined by using the pattern identifier.

[0376] As another example, the start and end frequency domain resource indices of scheduled frequency domain resources are mapped based on the start and length indicator value SLIV of frequency domain resources and the start and lifespan of frequency domain bandwidth resources predefined in the protocol. In other words, network devices map frequency domain H / To set the frequency domain length of the S / NA, the starting resource block number and the number of resource blocks for the corresponding frequency domain resource can be determined by using an index value.

[0377] In a possible implementation, the first information includes identification information for at least one pattern set, the identification information for at least one pattern set is used to determine at least one target pattern set, the at least one target pattern set includes the first pattern, the setting of each pattern set includes at least one of a plurality of patterns, each pattern set has corresponding pattern set identification information, and the identification information for any two pattern sets is different.

[0378] The first information indicates the first pattern among multiple patterns. The first information may indicate only one or more patterns, or it may indicate one or more sets of patterns. This is not limited to the present invention.

[0379] In a possible implementation, the network device transmits third information to the first node and / or terminal device. Correspondingly, the first node and / or terminal device receives third information from the network device. The third information is used to configure at least one first slot, and at least one first pattern is mapped to at least one first slot.

[0380] For example, the first slot is either a slot in the first time-domain periodicity, or the first slot is a slot corresponding to a time-domain resource that is the fourth resource in the first time-domain periodicity, the first time-domain periodicity corresponds to the setting periodicity of the first time-domain resource, the availability of the fourth resource is determined by second instruction information, and the second instruction information is transmitted by the first network device.

[0381] Optionally, the first slot may further include all slots in the first time-domain periodicity.

[0382] It should be understood that the first slot here may be a non-TDM slot, or may be directly referred to as an FDM slot. The specific name of the first slot is not limited in this application. The first slot supports only one function, namely frequency division resource setting, which may be set for several slots. Furthermore, the number of first slots supporting this function is also not limited in this application.

[0383] It should be noted that the first slot is simply an implementation of time granularity. Alternatively, the first symbol, etc., may be determined in the first time segment. The specific time granularity is not limited in this application.

[0384] For example, the first periodicity may correspond to the setting periodicity of H / S / NA time domain resources in the first time segment, or the periodicity may be set individually in units of slots or absolute time, or a single system frame may be used as the periodicity. The method for determining the first periodicity is not limited herein.

[0385] In possible implementations, the total number of slots in the first time segment and / or the first periodicity is determined based on the subcarrier interval, and the number of slots corresponding to the first slot is determined based on the number of the first slot and / or the set of numbers for the first slot.

[0386] For example, the DU calculates the number of slots in the first periodicity based on the configured periodicity of the H / S / NA time-domain resource and the configured subcarrier interval, and then determines which slots are non-TDM slots based on the number of the first slots.

[0387] As another example, the total number of slots in periodicity is determined by referring to the subcarrier interval of the initial bandwidth portion BWP of the DU cell, since the total number of slots in the system frame is constant at a given subcarrier interval.

[0388] Optionally, the reference subcarrier interval may be set individually, or it may refer to a subcarrier interval already set in other signaling or other application scenarios in other current protocols. This is not limited to the present invention.

[0389] As an example, and not an exhaustive one, at least one of several patterns is mapped to the first slot. In other words, the frequency domain pattern is set for the first slot based on multiple determined frequency domain patterns.

[0390] Optionally, frequency domain patterns may be further indicated by using a frequency domain pattern number or frequency domain pattern identification information.

[0391] When H / S / NA frequency domain resources are mapped, there are no restrictions on the number of frequency domain patterns or the number of first slots. For example, the number of at least one pattern is equal to the number of first slots, or the number of at least one pattern is a positive integer multiple of the number of first slots. In this case, the periodicity of the frequency domain patterns is a positive integer multiple of the mapping periodicity. Alternatively, the number of at least one pattern is less than the number of first slots. In this case, by default, frequency division is not performed for first slots that are not configured by frequency domain patterns. For example, first slots fall back to TDM slots by default.

[0392] Optionally, when H / S / NA frequency domain resources are mapped, different frequency domain resource patterns may be mapped to the first slot. For example, an H frequency domain resource may be mapped to the first slot, or an NA frequency domain resource may be mapped to the first slot based on this resource configuration. In this case, the NA frequency domain resource takes precedence over the H frequency domain resource; that is, the availability of the frequency domain resource for the first node's DU in the first slot is changed from a resource that is definitely available to a resource that is definitely unavailable. Specifically, in the mapping of frequency domain resources to time domain resources, H, S, and NA resources may be randomly combined and mapped to the first slot, in particular according to the requirements for communication between the network device and the first node and / or terminal devices. This is not limited to the present invention.

[0393] Optionally, in the mapping of H / S / NA frequency domain resources, one of the H / S / NA frequency domain resources may be mapped to the first slot, or S+NA, i.e., the S frequency domain resource is first mapped to the first slot, and then the NA frequency domain resource is mapped to the S resource, or S+H, H+NA, S+H+NA, etc. The resource mapping scheme is not limited in this application.

[0394] Optionally, in the mapping of H / S / NA frequency domain resources, the same frequency domain resource, for example, an H frequency domain resource, may be mapped to different time domain resources, for example, an S time domain resource and an NA time domain resource. This is not limited to the present invention.

[0395] In a possible implementation, the network device transmits the fourth information to the first node and / or terminal device. Correspondingly, the first node and / or terminal device receives the fourth information from the network device. The fourth information indicates the resource availability of the third resource. Optionally, the fourth information further indicates the resource availability of the fourth resource, i.e., the resource whose time-domain resource attribute is S.

[0396] In other words, the fourth piece of information can indicate the resource availability of S-time domain resources and S-frequency domain resources, and / or, the fourth piece of information can indicate the resource availability of S-frequency domain resources within the first slot.

[0397] In a possible implementation, the network device transmits fifth information to the first node and / or terminal device, which indicates grouping information of frequency domain resources corresponding to the first slot, and sixth information which indicates resource attributes of at least one frequency domain resource group.

[0398] For example, frequency domain resources in a DU cell are grouped using higher-layer signaling (e.g., RRC or F1-AP signaling).

[0399] It should be noted that the granularity and method of frequency domain resource partitioning may be RBG, the number of RBs, the bandwidth portion BWP, etc. This is not particularly limited in this application.

[0400] For example, the resource availability of at least one frequency-domain resource group is indicated explicitly and implicitly by transmitting physical layer DCI signaling. For example, the DCI signaling indicates the resource availability of at least one resource group in the IAB DU by using bits 0 / 1, where 0 indicates that the resources in the frequency-domain resource group are unavailable or there is no indication of resource availability in the frequency-domain resource group, and 1 indicates that the frequency-domain resources of the resources in the resource group are available. Alternatively, the resource availability of at least one resource group is indicated implicitly with or without bits. For example, if the bit value corresponding to a frequency-domain resource group is 1, it indicates that the resources in that frequency-domain resource group are available. Otherwise, if there is no bit value, it indicates that the resources in the corresponding frequency-domain resource group are unavailable. This is not limited to the present application.

[0401] In a possible implementation, a first relationship and / or a second relationship are obtained, the first relationship being a correspondence between a first parameter and indication information for the availability of a first resource, which indicates the resource availability of a first slot, i.e., the availability of uplink resources, downlink resources, and flexible resources for a soft slot; the second relationship being a correspondence between a second parameter and indication information for the availability of a second resource, which indicates the resource availability of frequency domain resources for a first slot, i.e., the availability of H / S / NA resources for uplink resources, downlink resources, and flexible resources for a soft slot; and the first pattern is determined based on the first and / or second relationships.

[0402] The first and second relationships may indicate the availability of all time-domain resources and the availability of all frequency-domain resources, and / or the resource availability of the first slot, i.e., the slot requiring frequency division multiplexing, and / or the availability of frequency-domain resources for the first slot. This is not particularly limited in this application.

[0403] In a possible implementation, the network device transmits seventh information to the first node and / or terminal device, the seventh information including identification information for at least one instruction set, the identification information for at least one instruction set used to determine at least one target instruction set, the at least one target instruction set including first and / or second parameters, the identification information for any two instruction sets being different, and the resource attributes of one or more frequency domain resources in at least one first slot being determined based on at least one target instruction set.

[0404] Furthermore, the resource availability of the third and / or fourth resources is determined based on at least one set of target directives.

[0405] S1020. The network device communicates with the first node and / or terminal device based on the first pattern.

[0406] The first node is a relay node. It should be understood that this embodiment of the present application applies to a wireless communication system having a relay node. The relay node may be an IAB node, or it may be a terminal device, i.e., a terminal device with wireless relay functionality. In particular, in NR, the relay node is generally an IAB node.

[0407] For example, a network device communicates with a first node and / or terminal device using a first time-domain resource based on a first pattern.

[0408] It should be understood that the first time-domain resource here may be understood as a set of time resources. The first time-domain resource may contain one or more slots. The slots may be contiguous or discontinuous. The first pattern is mapped to one or more slots and used for communication between the first node and the second network device and / or terminal device.

[0409] Optionally, different frequency-domain resource patterns may be mapped to one or more slots of the first time-domain resource.

[0410] Optionally, the first time domain resource may alternatively include one or more symbols, and the time granularity is not limited herein.

[0411] For example, a network device transmits second information to a first node and / or terminal device. Accordingly, the first node and / or terminal device receives second information from the network device. The second information directs to a first time-domain resource.

[0412] It should be noted that the instruction information, configuration information, etc. of this application may be carried without limitation in one of the following: wireless resource control signaling, media access control MAC layer signaling, and physical layer PHY signaling, or at least two combinations thereof. Wireless resource control signaling includes wireless resource control RRC signaling. MAC layer signaling includes MAC control element CE. Physical layer signaling includes downlink control information DCI, etc.

[0413] A wireless communication method and apparatus are provided according to the solution in the embodiments of the present invention. A frequency division resource pattern is predefined and configured and then mapped to time-domain resources requiring frequency division multiplexing. Furthermore, the availability of some or all resources within each frequency division slot is indicated by signaling, thereby allowing the resources of relay nodes to be configured. To avoid making the frequency division configuration overly flexible, constraints are imposed on the allocation of frequency division multiplexing resources, thereby allowing the network (e.g., donor base stations and IAB nodes) to handle the available bandwidth of DU cells in at least two ways: frequency division and non-frequency division, and to quasi-statically configure corresponding signal and channel resources, etc., for UEs in some bandwidth. This further reduces signaling overhead and improves system performance.

[0414] Figure 11 is a schematic diagram of another example of an IAB resource frequency division and instruction method according to the present invention. The frequency domain H / S / NA is mainly set in several slots, and the frequency domain H / S / NA is set based on several patterns. As shown in Figure 11, implementation procedure 1100 includes the following steps.

[0415] S1110. The donor base station (i.e., an example of a network device) determines the H / S / NA time-domain resource settings and transmits the H / S / NA time-domain resource settings to each cell of the DU of the first IAB node (i.e., an example of the first node). Accordingly, the first IAB node receives the H / S / NA time-domain resource settings from the donor base station.

[0416] For example, the CU of a donor base station sends signaling, such as upper-layer RRC signaling, to the DU to indicate the time-domain resource settings of a cell. For specific signaling formats, please refer to the specification of the standard 3GPP protocol TS 38.473. Details are not described again here. Thus, H time-domain resources, S time-domain resources (i.e., an example of a fourth resource), and NA time-domain resources are set for each cell of the DU. The DU of the first node communicates with lower nodes (e.g., terminal devices) based on the resource settings. For example, the time-domain resources of cell 1 are set in order as H, S, S, and NA. Accordingly, the first time-domain resource of cell 1 of the DU is definitely available, the availability of the second and third time-domain resources depends on further instructions from the higher node, and the fourth time-domain resource is unavailable, meaning the DU of the first IAB node cannot communicate with lower nodes and / or terminal devices using the fourth time-domain resource.

[0417] S1120. The donor base station determines the pattern of at least one H / S / NA frequency domain resource.

[0418] In possible implementations, one or more frequency domain H / S / NA patterns are configured by the base station or predefined by the protocol. The term "one" here is primarily used to allow for the addition or modification of one configuration by using signaling. Therefore, there may be cases where only one pattern is included.

[0419] In this embodiment of the present application, frequency domain resources include available (H) resources, unavailable (NA) resources, and scheduled (S) resources (i.e., examples of first, second, and third resources). Here, scheduled resources indicate that the availability of a resource depends on further instructions from higher-level nodes. It should be noted that unless otherwise emphasized, the meanings expressed by the two are equivalent.

[0420] Figure 12 is a schematic diagram of an example of a frequency domain H / S / NA pattern configuration. As shown in Figure 12, there are N frequency domain patterns. Frequency domain pattern 1 may be considered as dividing the cell's frequency domain resources into three segments, the three segments indicating, in order, that the frequency domain resource is unavailable (NA), its availability depends on further instructions S from a higher-level node, and its availability depends on further instructions S from a higher-level node. Frequency domain pattern 2 may be considered as dividing the cell's frequency domain resources into four segments, the four segments indicating, in order, that the frequency domain resource is definitely available (H), its availability depends on further instructions S from a higher-level node, its availability is definitely available (H), and its availability depends on further instructions S from a higher-level node. Frequency domain pattern n may be considered as dividing the cell's frequency domain resources into two segments, the two segments indicating, in order, that the frequency domain resource is definitely available (H), and its availability depends on further instructions S from a higher-level node.

[0421] As an example, and not an exhaustive one, the attributes of multiple frequency domain resource segments are defined as hard (H), soft (S), or unavailable (NA). The specific bandwidth indicated by each frequency domain resource segment depends on further configuration of the DU by the donor base station's CU. This configuration targets a specific cell of the DU, meaning the cell's frequency domain resources are further subdivided.

[0422] For example, it is assumed that a pattern of frequency domain resources defined in a protocol may indicate that the attributes of five resource segments are H / S / NA. In this case, multiple pattern combinations may be defined in the protocol, and each pattern combination is identified by a number. Table 1 shows several pattern combinations. As shown in Table 1, the pattern H, H, S, NA, and NA represented by the number 0 indicates that the cell's frequency domain resources are divided into five segments, and the five segments are, in order: frequency domain resources are definitely available, frequency domain resources are definitely available, availability depends on further instructions from higher nodes, frequency domain resources are unavailable, and frequency domain resources are unavailable. Alternatively, the pattern may indicate that the attributes of the five resource segments are H / NA. In this case, the protocol may define multiple pattern combinations, e.g., H, H, NA, NA, and H, or NA, H, H, H, and H, or H, H, H, H, and H. It should be understood that Table 1 is merely an example for illustrative purposes and should not constitute any limitation on the solutions of this application. In reality, there may be numerous pattern forms that are not listed here one by one.

[0423] Optionally, the protocol may define patterns of multiple lengths. For example, a frequency domain resource may be further divided into frequency domain resource segments of different lengths, such as 6 segments or 7 segments. [Table 1]

[0424] Figure 13 is a schematic diagram of an example of an H / S / NA pattern configuration for frequency domain segmentation of a cell. As shown in Figure 13, a DU cell is divided into three segments: X resource blocks RB, Y resource blocks RB, and Z resource blocks RB. For example, the RB configuration may start with the first RB counting from the lowest frequency of the cell and the RBs are arranged sequentially, and there may also be additional configuration information used to set the physical resource block (RB) number at the starting position of the RB.

[0425] In other words, the three RBGs may be configured as follows: RBG1 is X consecutive RBs counting from the starting frequency of the DU cell; RBG2 is Y consecutive RBs counting from the first RB after the last RB of RBG1; and RBG3 is Z consecutive RBs counting from the first RB after the last RB of RBG2. The size of the frequency domain resources within each resource block group is not limited herein.

[0426] In this case, for the frequency domain segmentation shown in Figure 12, a pattern can be selected that divides the corresponding frequency domain into three segments. When the protocol defines a frequency domain pattern of only one length, the first few attributes of each pattern are selected. For example, Table 1 defines five frequency domain patterns. When the frequency domain resources of a DU cell are divided into three segments, the first three resource attributes of each pattern correspond to the availability of each resource segment.

[0427] For example, in an FDM slot, pattern 1 (NA, S, H, S, and H) in Table 1 is used, which corresponds to the frequency domain segmentation shown in Figure 12. In this case, the first three attributes of frequency domain pattern 1 correspond to the availability of the first three resource segments of the cell. The final configuration is that the first X RBs are NA resources (unavailable to the DU), the next Y RBs are S resources (the availability of Y RBs to the DU depends on further instructions from higher-level nodes), and the last Z RBs are H resources (definitely available to the DU).

[0428] As an example, and not an exhaustive one, the attributes of multiple frequency domain resource segments are defined as hard (H), soft (S), or unavailable (NA). Specifically, the bandwidth indicated by each frequency domain resource segment is specified in the protocol as a reference value, and the IAB DU calculates the actually indicated bandwidth based on the bandwidth actually used by the cell.

[0429] For example, the reference value specified in the protocol is determined in the form of a frequency domain resource ratio. For example, the pattern H:S:NA=2:1:0 is specified to correspond to a DU cell with 100MHz. In this case, a hard resource of 100MHz × 2 / (2+1)=66.7MHz and a soft resource of 100MHz × 1 / (2+1)=33.3MHz are determined in the slot. As another example, the pattern NA:H=1:1 is specified to correspond to a DU cell with 100MHz. In this case, an NA resource of 100MHz × 1 / 2=50MHz and a soft resource of 100MHz × 1 / 2=50MHz are determined. hard Resources are determined in slots. Alternatively, in a possible implementation, the 100MHz bandwidth is replaced by the number of resource blocks RB for calculations, etc.

[0430] In other possible implementations, the donor base station sets the pattern of H / S / NA frequency domain resources.

[0431] It should be noted that donor base stations may implement frequency domain resource pattern configurations in any form, and each pattern may be identified by using an ID. The pattern configuration includes the frequency domain size (i.e., RB length) of each resource segment and the attributes of each resource segment.

[0432] For example, the following shows the frequency domain pattern configuration for a non-TDM slot. It should be understood that other methods containing the same content may also be used in practice.

number

[0433] Table 2 shows the pattern setting information for each frequency domain resource segment. As shown in Table 2, the frequency domain pattern with pattern ID RBG1 is divided into four segments, with a starting RB number of 0, and the number of RBs being 1, 2, 3, and 4 respectively, and the corresponding frequency domain attributes being H, H, S, and NA respectively. The frequency domain pattern with pattern ID RBG2 is divided into three segments, with a starting RB number of 1, and the number of RBs being 1, 2, and 3 respectively, and the corresponding frequency domain attributes being NA, H, and S respectively, and so on. It should be understood that Table 2 is merely an example for illustrative purposes and should not constitute any limitation to the present invention. [Table 2]

[0434] In further possible implementations, the base station sets a frequency domain pattern based on the start and length indicator value (SLIV) of the frequency domain resources.

[0435] For example, the indices of the start slot / symbol and end slot / symbol of a scaling time-domain resource are mapped by using a table predefined in the protocol. Similarly, in this implementation, the frequency-domain pattern is defined by defining the start and duration of the frequency-domain bandwidth resource. If a resource type, for example, hard (H), has two SLIV values, then two segments exist.

[0436] Table 3 shows the pattern setting information for frequency domain resources. As shown in Table 3, some indices and the bandwidth combinations indicated by the indices are listed. For example, index 1 indicates that the frequency domain pattern is hard (H, the frequency domain resource is reliably available), the resource length is 2, that is, it contains 2 resource blocks, and the resource's starting resource block number is 0. Index 13 indicates that the frequency domain pattern is soft (S, the availability of the frequency domain resource depends on further instructions from higher-level nodes), the resource length is 6, that is, it contains 6 resource blocks, and the resource's starting resource block number is 1. 16 This indicates that the frequency domain pattern is unavailable (NA, the frequency domain resource is unavailable), the resource length is 1, meaning only one resource block exists, and the resource's starting resource block number is 2. It should be understood that the values ​​in Table 3 are merely examples. In practice, there may be multiple table definition formats that are not listed here one by one. In fact, the length, starting number, and values ​​and value ranges of the corresponding indexes are not restricted and should not constitute any limitation on the solution of this application. [Table 3]

[0437] As an example, rather than an limitation, when the resource start, length, and index shown in Table 3 are defined or set, the base station can set the resource start and length of the H / S / NA frequency domain resource based on the index. For example,

number

[0438] In summary, in this configuration format, the base station can configure continuous or discontinuous H / S / NA frequency domain resources of any length.

[0439] The donor base station may optionally determine multiple pattern sets, in which case the configuration of each pattern set includes at least one of the multiple patterns, each pattern set has corresponding pattern set identification information, and the identification information of any two pattern sets is different.

[0440] S1130. The donor base station transmits the first configuration information (i.e., an example of the third information) to each cell of the DU of the first IAB node, where the first configuration information indicates the resource settings for non-TDM slots (i.e., an example of the first slot). Accordingly, the first IAB node receives the resource setting information for non-TDM slots from the donor base station.

[0441] Non-TDM slots (or FDM slots) support only one function, and this function may configure frequency division resource settings for several slots. It should be understood that the names of slots are not particularly limited in this application, as long as all slots supporting the function are within the scope of protection.

[0442] In possible implementations, in the time domain, some slots are configured as non-TDM slots. For TDM slots, the H / S / NA time domain resources configured in step S1110 are still applicable. For non-TDM slots, the availability of each frequency domain resource segment needs to be further determined based on the H / S / NA frequency domain resource pattern.

[0443] In other possible implementations, some slots in the time-domain periodicity may be set as non-TDM slots.

[0444] As an example, and not an limitation, the configuration of the H / S / NA frequency domain resource pattern may be linked to the time domain H / S / NA configuration periodicity, meaning that some slots in the periodicity are non-TDM slots. Specifically, slot numbers are set for non-TDM slots. The DU calculates the number of slots in the periodicity based on the H / S / NA configuration periodicity and the configured subcarrier interval, and based on that number, determines which slots are non-TDM slots.

[0445] As an example, and not an exhaustive one, periodicity can be set individually in units of slots or absolute time (e.g., seconds or milliseconds). For example, periodicity may be called frequency division multiplexing transmission periodicity (FDM transmission periodicity) or non-time division multiplexing transmission periodicity (non-TDM transmission periodicity).

[0446] As an example, rather than an limitation, one system frame (10ms) is used as the periodicity, and the setting directly indicates that some slots are non-TDM slots. Given a subcarrier interval, the total number of slots in a system frame is fixed. Therefore, the total number of slots in a periodicity can be determined by referring to the subcarrier interval of the initial bandwidth part (BWP) of the DU cell. For example, with a 60kHz subcarrier interval, the total number of determined slots in a system frame is 40, and with a 120kHz subcarrier interval, the total number of determined slots in a system frame is 80. In this case, only a set of non-TDM slot numbers can be set. For example, the set {5,9,25,29} indicates that the 5th, 9th, 25th, and 29th slots are non-TDM slots.

[0447] Optionally, the reference subcarrier interval may be individually configured or refer to a configured subcarrier interval already existing in other signaling or other application scenarios in other current protocols. This is not limited to the present invention.

[0448] In other possible implementations, all S slots in the time domain (whose availability depends on further instructions from higher-level nodes) are, by default, potential non-TDM slots.

[0449] S1140. Maps the H / S / NA frequency domain resource pattern (i.e., the first pattern) to the non-TDM slot.

[0450] Optionally, the donor base station transmits instruction information (i.e., an example of first information) to the DU of the first IAB node, which includes instruction information for the first pattern used to instruct the first pattern to be mapped to a non-TDM slot. Accordingly, the first IAB node receives instruction information from the donor base station.

[0451] For example, a donor base station transmits F1-AP signaling (i.e., an example of first information) to the first IAB node. Correspondingly, the first IAB node receives F1-AP signaling from the donor base station. F1-AP signaling is used to instruct the first pattern among several patterns to be mapped to one corresponding slot.

[0452] In possible implementations, the H / S / NA frequency domain resource patterns for multiple slots (non-TDM slots) can be set simultaneously using F1-AP signaling. For example, the H / S / NA frequency domain resource patterns for all non-TDM slots within a setting period can be set using a single signal.

[0453] Optionally, the first IAB node receives DCI signaling, in which case the third information includes identification information for at least one pattern set, and the identification information for at least one pattern set indicates at least one target pattern set.

[0454] In other words, based on the multiple frequency domain patterns set in step 1120, the donor base station maps the frequency domain patterns to each non-TDM slot (or collectively referred to as several slots) in periodicity for each cell of the DU of the first IAB node. Furthermore, pattern numbers (e.g., pattern 1 and pattern 2) may be used for designation.

[0455] In a possible implementation, the donor base station sets one frequency-domain pattern for all non-TDM slots in a single periodicity. The method for determining a particular periodicity is described in step S1130; further details are not provided here. For example, if there are four non-TDM slots in one set periodicity, the donor base station sets four pattern numbers. The frequency-domain patterns corresponding to the four numbers sequentially correspond to the four non-TDM slots in that periodicity. The setting is performed cyclically across multiple periodicities according to this rule.

[0456] Figure 14 is a schematic diagram of an example where frequency-domain H / S / NA patterns are mapped to several periodic slots. As shown in Figure 14, the horizontal and vertical coordinates represent time and frequency, respectively, i.e., time-domain resources and frequency-domain resources. For the entire cell, i.e., cell global ID (CGI) 1, H, S, S, and NA time-domain resources are set separately.

[0457] In a DU cell, the three S resources are non-TDM slots by default in one set periodicity. Frequency domain pattern 1 is set for the first and second non-TDM slots and can be considered to divide the frequency domain resources into three segments, with the corresponding resource attributes being NA, S, and H, respectively. Frequency domain pattern 2 is set for the third non-TDM slot and can be considered to divide the frequency domain resources into four segments, with the corresponding resource attributes being H, S, H, and NA, respectively.

[0458] Optionally, a donor base station may set three different pattern numbers, for example, pattern 1, pattern 2, and pattern 3. In this case, frequency domain pattern 1, frequency domain pattern 2, and frequency domain pattern 3 are set sequentially for three non-TDM slots. It should be noted that the frequency domain patterns set periodically and mapped to the non-TDM slots may be the same or different. This is not limited to the present invention.

[0459] Non-TDM slot configuration can be understood as further refining frequency domain resources to RGB granularity, targeting each frequency domain resource segment, while TDM slot configuration should be understood as targeting DU cells.

[0460] In other possible implementations, the donor base station can set more pattern IDs, and the number of patterns is an integer multiple of the number of non-TDM slots in the periodicity. For example, if there are four TDM slots in one set periodicity, the donor base station can set eight pattern numbers, and the cycle periodicity of the frequency domain patterns is twice the set periodicity.

[0461] In other possible implementations, the number of pattern IDs set by the donor base station is less than the number of non-TDM slots in the periodicity. In this case, non-TDM slots for which no pattern IDs are set fall back to TDM slots by default, meaning frequency division multiplexing is performed for the resources. For example, if there are three non-TDM slots in one set periodicity and the donor base station sets two pattern IDs, frequency domain patterns only need to be set for the first two non-TDM slots, and frequency division multiplexing is not performed for the resources in the third TDM slot by default.

[0462] S1150. The donor base station transmits physical layer signaling DCI (i.e., an example of fourth information) to the first IAB node to indicate the availability of the DU's software (S). Correspondingly, the first IAB node receives physical layer signaling DCI from the donor base station.

[0463] In particular, regarding uplink resources, downlink resources, and flexible resources in the resource configuration of the DU of the first IAB node. Resource attributes are set for each resource type. The resource attributes of a symbol are determined by the following conditions: the attribute settings of the slot to which the symbol belongs and the resource type of the symbol. For example, one slot may have the following TDD transmission direction settings: {uplink (UL) symbol, downlink (DL) symbol, flexible symbol}.

[0464] A donor node provides multiple resource attribute settings for an IAB node. These multiple resource attribute settings are associated with multiple resource settings. For example, a donor node provides a first resource attribute setting and a second resource attribute setting for an IAB node, and the first and second resource attribute settings are associated with a first resource type setting and a second resource type setting, respectively. When a donor node provides multiple DU resource settings for an IAB node to a higher-level node of the IAB node, the higher-level node needs to know the relationships between the IAB node's resource type settings and resource attribute settings. These relationships may be provided to the higher-level node by the donor node, or reported to the higher-level node by the IAB node.

[0465] Since a single slot contains multiple OFDM symbols, and each OFDM symbol can be used for uplink or downlink, the availability of soft resources in an IAB node's DU must be indicated by the higher-level node, which also indicates the availability of soft resource slots for each slot and resource type. Accordingly, a donor node can define one or more of the following eight availability states for a single slot in an IAB node's DU. Each case can be indicated based on three bits and indicates whether all or some symbols in a slot are available in the transmission direction, or whether no availability indication is given (no availability indication). It should be noted that no availability indication is different from unavailability. Here, a resource is not defined as unavailable to a child node IAB DU. The protocol requirement is that the transmission or non-transmission of an IAB DU in a resource should not affect the use of the resource by the cosite IAB MT.

[0466] Specifically, Table 4 (i.e., an example of the first relationship) shows the mapping relationship between the value of the resource availability element and the availability type of the soft resources in the slot. As shown in Table 4, a value of 0 indicates no indication of availability for all soft resources, and a value of 3 indicates that uplink and downlink resources are indicated as available, and that flexible resources are not indicated as available. [Table 4]

[0467] In embodiments of the present application, the DCI signaling shown in Table 4 may still indicate S resources. Furthermore, new definitions may be added to the values ​​of the resource availability element, i.e., the existing DCI signaling in Table 4 indicates S frequency domain availability within a non-TDM slot. It should be understood that the indication of S symbols or slots in the protocol is valid across the entire bandwidth. In this embodiment of the present application, for some slots or symbols where frequency division exists, the availability indication is valid only for resources identified as S in the frequency domain within those slots or symbols.

[0468] In summary, in the above embodiment, H / S / NA time-domain resources are initially configured, then H / S / NA resources for frequency-domain patterns are configured or predefined, the frequency-domain patterns are mapped to several periodic slots, and finally, the availability of S-frequency-domain resources is further indicated based on DCI signaling. The main differences lie in the newly added pattern configuration and definition of H / S / NA frequency-domain resources and the protocol-specified or newly added DCI signaling indicating the availability of S-frequency-domain resources. By using a method of pre-defining and indicating frequency-domain patterns, configuration redundancy and complexity are avoided, and signaling overhead is reduced.

[0469] Figure 15 is a schematic diagram of yet another example of an IAB resource frequency division and direction method according to the present application. The method primarily relates to using patterns to dynamically direction a specific number of frequency division resources for several slots in which frequency division is performed. The main difference between this specific implementation and method 1100 of the above-described embodiment is that the new DCI signaling is designed to indicate the availability of DU frequency domain resources in multiple non-TDM slots. Method 1500 may be used to dynamically direction S resources in step S1150 of method 1100. To some extent, the two solutions may be used together. This is not particularly limited in the present application. As shown in Figure 15, implementation procedure 1500 includes the following steps.

[0470] S1510. The donor base station (i.e., an example of a network device) determines the H / S / NA time domain resource settings and transmits the H / S / NA time domain resource settings to each cell of the DU of the first IAB node (i.e., an example of the first node). Accordingly, the first IAB node receives the H / S / NA time domain resource settings from the donor base station.

[0471] For example, the CU of a donor base station sends a signal to the DU indicating the time-domain resource configuration of the cell. For the specific signaling format, please refer to the specification of the standard 3GPP protocol TS 38.473. Details are not described again here. Thus, H time-domain resources, S time-domain resources, and NA time-domain resources are configured for each cell of the DU. The DU of the first node communicates with lower nodes (e.g., terminal devices) based on the resource configuration. The specific implementation is the same as S1110 of method 1100 described above. For brevity, details are not described again here.

[0472] S1520. The donor base station transmits configuration information (i.e., example of third information) to each cell of the DU of the first IAB node, and the configuration information indicates the resource configuration for the non-TDM slot (i.e., example of first slot). Accordingly, the first IAB node receives configuration information from the donor base station.

[0473] Non-TDM slots (or FDM slots) support only one function, and this function may configure frequency division resource settings for several slots. It should be understood that the names of slots are not particularly limited in this application, as long as all slots supporting the function are within the scope of protection.

[0474] In possible implementations, in the time domain, some slots are configured as non-TDM slots. For TDM slots, the H / S / NA time domain resources configured in step S1110 are still applicable. For non-TDM slots, the availability of each frequency domain resource segment needs to be further determined based on the H / S / NA frequency domain resource pattern.

[0475] In other possible implementations, some slots in the time-domain periodicity may be set as non-TDM slots.

[0476] For example, the configuration of an H / S / NA frequency domain resource pattern may be linked to the time domain H / S / NA configuration periodicity, meaning that some slots in the periodicity are non-TDM slots, or the periodicity may be configured individually in units of slots or absolute time (e.g., seconds or milliseconds), or one system frame (10ms) may be used as the periodicity, with the configuration directly indicating that some slots are non-TDM slots.

[0477] In other possible implementations, all S slots in the time domain (whose availability depends on further instructions from higher-level nodes) are, by default, potential non-TDM slots.

[0478] For example, Figure 16 is a schematic diagram of an example where several time-domain resources are configured as non-TDM slots (or FDM slots). As shown in Figure 16, the second, third, ninth, and tenth slots in the time domain are configured separately as FDM slots.

[0479] The seven possible implementations described above are similar to those described in S1140 of Method 1100 above. For brevity, further details are not provided here.

[0480] S1530. The donor base station transmits the second configuration information (i.e., an example of the fifth information) to the first IAB node, at which time the configuration information indicates the frequency domain resource segmentation settings for the DU cell. Accordingly, the first IAB node receives the frequency domain resource segmentation configuration information from the donor base station.

[0481] In possible implementations, the frequency domain resources of a DU cell may be quasi-statically divided into multiple segments. Specifically, the frequency domain resources of a cell are segmented using upper-layer signaling (RRC or F1-AP signaling).

[0482] Furthermore, different segment sizes may be allowed to be set for each slot or symbol where frequency division multiplexing needs to be performed.

[0483] For example, Figure 17 is a schematic diagram of an example of frequency-domain segmentation of a cell's frequency-division multiplexed slot or symbol. As shown in Figure 17, the cell's frequency-division slot is segmented. For example, the frequency-domain resource is divided into three segments: RBG1, RBG2, and RBG3. Optionally, non-frequency-division slots may also be divided into three segments, or there may be no grouping at all. This does not affect the resources of the non-frequency-division slot. The size of the frequency-domain resource group is not particularly limited in this application.

[0484] In addition to the aforementioned RBG, it should be noted that the granularity and method of frequency domain resource partitioning may be the number of RBs, the bandwidth portion BWP, etc. This is not particularly limited in this application.

[0485] In other possible implementations, frequency division H / S / NA resources may be quasi-statically configured in some slots (non-TDM slots) by using the configuration method 1100 in Embodiment 1 described above (e.g., steps S1120 and S1140). The specific implementation process is described in the steps above. For brevity, the details are not described again here.

[0486] S1540. The donor base station transmits DCI signaling (i.e., sixth information) to the first IAB node to indicate the availability of each frequency domain resource segment within each slot. Correspondingly, the first IAB node receives DCI signaling from the donor base station.

[0487] In possible implementations, for each slot, each frequency-domain resource segment of the IAB DU may be indicated as available or unavailable by using bits 0 / 1 of the DCI signaling. Similar to the DCI 2_5 design, the DCI of dynamic frequency-domain resources may be indicated by using a segment of consecutive bits within the DU cell to indicate the availability of frequency-divided resources within each slot of non-TDM resources in periodicity. Specific instructions are given in Table 4. For brevity, further details are omitted here.

[0488] For example, Figure 18 is a schematic diagram of an example of using DCI signaling to indicate the availability of frequency domain resources. As shown in Figure 18, the frequency domain resources of cell X in DU are divided into three segments: RBG1, RBG2, and RBG3. In this case, a 3-bit DCI signaling needs to be used for further indication. For example, if the DCI signaling for indicating the FDM resources of cell X in DU is 001 010 011 010, the DCI signaling corresponding to the start position of the FDM resource indication is 001, called frequency domain resource setting 1. The three bits 0 / 1 correspond to the availability of the frequency domain resources of RBG1, RBG2, and RBG3, respectively, where 0 indicates that the frequency domain resources are unavailable or there is no indication of frequency domain resource availability, and 1 indicates that the frequency domain resources are available. In other words, the frequency domain resources of RBG1 are unavailable, the frequency domain resources of RBG2 are unavailable, and the frequency domain resources of RBG3 are available.

[0489] It should be understood that when the frequency domain resources of cell X in DU are divided into two segments, the availability of the frequency domain resources can be indicated by using 2-bit DCI signaling.

[0490] Furthermore, this embodiment of the present application may be combined with H / S / NA to quasi-statically configure H / S / NA frequency domain resources. In this case, only bits 0 / 1 of the DCI signaling may indicate the availability of S frequency domain resources. For example, the frequency domain resources of cell X shown in Figure 18 are divided into three segments. In this case, a pattern for dividing the corresponding frequency domain into three segments may be selected based on the pattern of H / S / NA frequency domain resources configured or predefined in step S1120 of method 1100 described above, and only one bit of DCI signaling 0 / 1 is used to further indicate the availability of S resources.

[0491] In other possible implementations, a predefined configuration index may be provided for each frequency domain resource segment within each slot by using DCI signaling.

[0492] A predefined configuration index contains resource instructions for multiple slots / symbols. Upon receiving an instruction, a child IAB node may determine the availability of S resources within the DU cell in one or more slots / symbols, where the S resources include resources whose bandwidth portion is S in the frequency domain. The specific implementation steps are as follows:

[0493] Step 1: The protocol pre-defines a correspondence table to associate the value of an instruction bit with the meaning of that bit.

[0494] In possible implementations, the tables defined in the current protocol are used. The mapping relationship between the resource availability element values ​​and the availability types of the S symbols in the slots is used, as shown in Table 4. For brevity, further details are omitted here. In other words, Table 4 may be used to set availability indications for soft time-domain resources, and may also be used to set availability indications for soft frequency-domain resources.

[0495] In other possible implementations, a new table may be defined to indicate the availability of further frequency-domain resources. For symbols set as soft in the time domain, frequency-domain H / S / NA may exist, or different transmission direction settings may exist. Therefore, more cases need to be indicated. Correspondingly, more bits may be required in each case.

[0496] For example, Figure 19 is a schematic diagram of an example of the availability of frequency domain resources in an S-time domain resource. As shown in Figure 19, the frequency domain resource is divided into three segments, with corresponding attributes being: the frequency domain resource is unavailable (NA), availability depends on further instructions from higher-level nodes (S), and the frequency domain resource is definitely available (H).

[0497] It should be understood that the bandwidth size obtained by partitioning frequency domain resources in the time domain S is not limited, and H and / or S and / or NA may be considered for frequency domain resource attributes. Table 5 (i.e., an example of the second relationship) shows the mapping relationship between the values ​​of the resource availability element and the availability type of soft resources (including time domain and frequency domain resources). A total of 16 cases are defined. Each case can be indicated by four bits indicating whether symbols are available or not for all or some transmission directions in a single slot. Values ​​0 to 7 indicate availability information for soft time domain resources, and values ​​8 to 15 indicate availability information for soft frequency domain resources. As shown in Table 5, a value of 0 indicates no availability information for all soft time domain resources, a value of 9 indicates no availability information for downlink resources, and a value of 14 indicates that flexible resources are indicated as available, and also indicates no availability information for uplink and downlink resources. [Table 5] TIFF0007855830000010.tif86170

[0498] It should be understood that Table 5 is merely an example. In fact, multiple table definition formats may exist, and these will not be listed one by one here. However, the core idea is to indicate the availability of S resources. In addition to UL, DL, and flexible transmission directions, H / S / NA frequency domain resources may also be considered, or the availability of just a few time domain resources, such as H and S frequency domain resources, may be considered.

[0499] Step 2: The donor base station sets up multiple instruction sets by using upper-layer signaling (e.g., RRC signaling).

[0500] A set contains multiple values ​​from the table predefined in step 1, where the values ​​sequentially indicate the availability of a set of slot resources that need to be indicated; that is, one value corresponds to one slot resource. Multiple instruction sets are identified by using numbers, e.g., 1, 2, 3, ..., N. It should be understood that the numbers in an instruction set are the value columns in the table. In actual configuration, the numbers in an instruction set may be converted to a binary format for configuration, provided that a one-to-one correspondence can be ensured between the values ​​of the resource availability elements and the availability types of the S symbols in the slots.

[0501] For example, the instruction set is configured as follows:

number

[0502] Specifically, for a set with ID 1, corresponding to the mapping relationship between the resource availability element value and the availability type of the S symbol in the slot, as shown in Table 5, the first slot corresponds to number 2, i.e., '0010' indicating that the uplink S symbol is indicated as available; the second, third, and sixth slots correspond to number 3, i.e., '0011' indicating that both the uplink and downlink S symbols are indicated as available; the fourth and seventh slots correspond to number 6, i.e., '0110' indicating that both the uplink and flexible S symbols are indicated as available and the downlink S symbol is indicated as unavailable; the fifth slot corresponds to number 7, i.e., '0111' indicating that both the uplink, downlink, and flexible S symbols are indicated as available, and so on.

[0503] It should be understood that the following two cases are further included in the specific implementation process:

[0504] (1) There is only one set of configuration instructions, meaning that the IDs included in all instruction sets are within a unified range. In this case, the instruction set can be based only on a table defined in the current protocol, e.g., Table 4, and can indicate the availability of only DL, UL, and flexible resources in the S slot, or the instruction set can be based only on a newly defined table, e.g., Table 5, and can indicate the availability of only DL, UL, and flexible H / S / NA frequency domain resources in the S slot.

[0505] (2) Both of the two configuration sets may exist. In other words, by using DCI, a base station may indicate the availability of time-domain resources in a slot (i.e., no frequency division is performed), or it may indicate the availability of specific frequency-domain resources in a slot (i.e., frequency division is performed).

[0506] Furthermore, considering the problem of the coexistence of time-domain setting instruction sets and frequency-domain setting instruction sets in existing standard protocols, this invention further provides several possible implementations.

[0507] Figure 24 is a schematic diagram of yet another example of a wireless communication method according to the present invention. Specifically, the method includes the following steps:

[0508] S2410. The network device sends configuration information to the first node.

[0509] Accordingly, the first node receives configuration information from the network device.

[0510] The configuration information indicates resource availability, and the configuration information includes identification information for multiple instruction sets, each instruction set containing availability instructions for multiple time-domain resources and / or frequency-domain resources.

[0511] S2420. The first node determines the availability of frequency domain resources and / or time domain resources based on the configuration information.

[0512] In a possible implementation, the frequency domain resource availability instruction includes a resource availability instruction for at least one RB set group, and each RB set group includes a resource availability instruction for at least one slot RB set group.

[0513] In other possible implementations, the frequency domain resource availability instruction includes a resource availability instruction for at least one slot, the at least one slot being a first slot, and the first slot further including a resource availability instruction for at least one RB set group.

[0514] In further possible implementations, the set of instructions includes a first set of instructions and a second set of instructions, the first set of instructions corresponding to time-domain resources, and the second set of instructions corresponding to availability instructions for frequency-domain resources, with the identification information of the first set of instructions being different from the identification information of the second set of instructions.

[0515] Specifically, in the example, the new resource availability instruction setting is designed to support both time-division resource availability instructions and frequency-division resource availability instructions.

[0516] Optionally, when a frequency division resource availability instruction setting is set for the IAB MT, the IAB MT does not expect to receive or use an availability instruction setting that is used only for time division resources. An availability instruction setting includes an AvailabilityCombinationId, each ID containing one or more resource availability instructions. A resource availability instruction may be an availability instruction used for time division resources or an availability instruction used for frequency division resources. Specifically, when an availability instruction is an availability instruction used for time division resources, the value of the availability instruction is used to determine the availability of soft slot resources. When an availability instruction is an availability instruction used for frequency division resources, the availability instruction is a sequence containing one or more values, each value in the sequence indicating the availability of at least one soft frequency domain resource in a single slot, and the soft frequency domain resource may be one or more RB sets or one or more RB set groups.

[0517] Optionally, when availability indication settings for frequency division resources are set for an IAB MT, the availability of time division resources may be determined by using rules predefined by the set rules or protocols. For example, rbSetGroups information that can support frequency division resources is set. The information element includes resource availability indications for at least one RB set group, and may further include the number of RB set groups. Specifically, when the number of RB set groups is set to 1, the resource availability indication may be understood as indicating the availability of all frequency domain resources in the corresponding slot, i.e., the availability of soft frequency domain resources in one slot may be indicated. As another example, constraints are imposed by using protocols. When a time division resource availability indication is set, the number of RB set groups is set to 1. As another example, protocols are used for predefinition. When multiple resource availability indications are set for a slot of time division resources, the time division resource availability indication may be based on the first resource availability indication to determine multiple corresponding RB set groups.

[0518] It may be understood that, if a time-division resource availability instruction is optionally set or instructed for a soft slot in which a frequency-division resource resides, resource availability is determined for all soft frequency-domain resources (i.e., RB set groups) in the slot based on the set availability instruction for the time-division resource. Specifically, the following are some possible implementations:

[0519] Solution 1: Each frequency domain resource, for example, an RB set group, indicates the resource availability of one or more slots.

[0520] The first possible form of configuration signaling is as follows:

number

[0521] The selection of resourceAvailability-r17 indicates that either a time-domain resource availability indication method or a frequency-domain resource availability indication method is selected. rbSetGroups-r17 may be a sequence containing more than one RbSetGroup-r17. Each RbSetGroup-r17 includes the frequency-domain resource availability setting for RbSetGroup-r17, i.e., it indicates the resource availability for each RB set group. maxNrofRbSetGroups-r17 indicates that resource availability is set for several (maximum) RB set groups. For example, up to eight RB set groups may be obtained through frequency-domain partitioning. Furthermore, each RbSetGroup-r17 further includes the number of RB sets in the slot and the corresponding resource availability, which is set by resourceAvailability-r16. maxNrofResourceAvailabilityPerCombination-r16 indicates the resource availability indication for RB set groups in the maximum time setting. INTEGER(0..7) may indicate the resource availability indication for RB set groups in the slot. For the meaning of the values ​​(0-7), please refer to Table 4. Further details are not provided here.

[0522] A second possible form of configuration signaling is as follows:

number

[0523] Both the sets indicating the availability of frequency-division resources and the sets indicating the availability of time-division resources include a set ID, a resource availability instruction for the frequency domain RB set group, and maxNrofRbSetGroups, which indicates the maximum number of resource availability instructions for the RB set groups that may be included. For each RB set group, the instruction set further includes the resource availability setting for the RB set group in one or more slots (set by resourceAvailability) and the number of RB sets included in each RB set group.

[0524] The difference between the configuration signaling and the first configuration signaling is that in the second method, availability indications can be set accordingly based on the number of different groups, whereas in the first method, the number of RB set groups in different slots is relatively inflexible.

[0525] A third possible form of configuration signaling is as follows:

number

[0526] rbSetGroups-r17 may be a sequence containing more than one RbSetGroups-r17, each RbSetGroups-r17 containing a resource availability setting for one or more RB set groups within a single slot. Furthermore, each RbSetGroup-r17 further includes the number of RB sets within the slot and their corresponding resource availability, which is set by resourceAvailability-r16. maxNrofResourceAvailabilityPerCombination indicates that the length is up to N slots in time. RbSetGroup-r17 indicates the availability setting for one or more RB set groups within each slot. resourceAvailabilityRbSetGroup indicates one or more values ​​(0-7). If multiple values ​​exist, each value corresponds to the resource availability of one RB set group. maxNrofRbSetGroups indicates up to eight values ​​(0-7). maxNrofRbSets indicates the number of sets within each group.

[0527] Solution 2: Each time-domain resource, e.g., slot, represents the resource availability of one or more RB set groups. In other words, if frequency division exists, each slot represents the resource availability of each RB set group.

[0528] A resource availability instruction setting includes availability instructions for multiple time resources in the time domain, where time resources may be slots. For any slot, if the slot is a time-division resource slot, the resource availability instruction is the value in Table 4 used to determine the resource availability of the slot. For any slot, if the slot is a frequency-division resource slot, the setting further includes resource availability instructions for one or more RB set groups. For any RB set group resource availability instructions, the setting further includes the value of the resource availability instruction, which is any value in Table 4. The resource availability instruction for any RB set group may further include the number of RB sets in the RB set group. A specific form of setting signaling may be shown as follows:

number

[0529] Specifically, in other examples, additional resource availability directives are designed to support frequency-division resource availability directives. It should be understood that these directives are independent of existing time-division resource availability directives (e.g., Table 4). Thus, time-division resource availability directives and frequency-division resource availability directives may share the same set of availabilityCombinationIds. In other words, a single DCI signaling may indicate resource availability for both time-division slots and frequency-division slots.

[0530] Specifically, different availabilityCombinationIds may be set for time-division resource availability instructions and frequency-division resource availability instructions. In other words, one availabilityCombinationId is used only to set either time-division resource availability or frequency-domain resource availability. In setting signaling, time-division resource availability settings and frequency-division resource availability settings may be independent of each other, and both may contain a single availabilityCombinationId. Specific implementations are as follows:

number

[0531] The term "resource availability indication" may refer to an indication method that is "first in the frequency domain, then in the time domain." For example, suppose there are four resource availability indications {a, b, c, d} indicating the resource availability of two soft slots, where a, b, c, and d each have a single value (0 to 7), and each soft slot resource may be further divided into two RB set groups. In this case, {a, b} among the four resource availability indications may be considered to indicate the availability of soft frequency domain resources for two RB set groups in the first soft slot, and {c, b} may be considered to indicate the availability of soft frequency domain resources for two RB set groups in the second soft slot.

[0532] The aforementioned mapping method for "resource availability instructions" is more likely to coexist with existing time-domain resource availability instructions (e.g., Table 4), meaning that resource availability instructions are provided for each slot, regardless of whether the soft slot is a frequency-division slot or not.

[0533] It should be understood that the information element names in the configuration signaling are merely examples for illustrative purposes. This is not particularly limited in this application.

[0534] It should be noted that the various possible implementations given above are merely illustrative examples and should not constitute any limitation to the technical solutions of this application.

[0535] In the methods disclosed above, multiple frequency-domain resource availability directives are configured and defined to reduce signaling overhead and improve system performance by avoiding the overly redundant and complex configuration of frequency-division resources in current technology. In particular, regarding the issue of coexistence of frequency-domain and time-domain configuration directive sets, multiple possible resource availability directive configurations are provided to avoid confusion and interference between time-domain and frequency-domain resource availability directives. Furthermore, availability directive configurations may be configured for time-division and frequency-division resources based on an integrated signaling framework.

[0536] It should be noted that the resource block group in this embodiment of the present application may be replaced by a resource block set, a resource block set list, or a resource block set group. This is not particularly limited in the present application. Therefore, a frequency domain resource block group may be replaced by a frequency domain resource block set, a frequency domain resource block set list, or a frequency domain resource block set group. The same applies to time domain resources.

[0537] For a DU cell, frequency-division resources may be configured in some slots, and time-division resources may be configured in some slots. The resource availability indicators disclosed herein may be used to configure both frequency-division and time-division resources.

[0538] Step 3: The higher-level node (e.g., donor base station) transmits DCI signaling (i.e., an example of the seventh piece of information) to the IAB node, which includes identification information for at least one instruction set and indicates at least one target instruction set. Accordingly, the IAB node receives DCI signaling from the higher-level node.

[0539] DCI signaling carries a configured instruction set ID to indicate resource availability for multiple non-TDM slots to lower DUs. It should be noted that the DCI signaling transmitted here includes the set index value, i.e., the set ID.

[0540] In summary, in the embodiments described above, H / S / NA time-domain resources are initially configured, then frequency-domain resources are divided into multiple segments, and finally, the availability of each frequency-domain resource segment is indicated by the use of DCI signaling. The main difference is that in each slot requiring frequency division, new DCI signaling is designed to further indicate the resources available to the DU, thereby avoiding complex and redundant configurations and reducing signaling overhead.

[0541] Referring to Figures 10 to 19, the above describes in detail an embodiment of the resource setting method provided in the embodiment of the present application. Referring to Figures 20 to 23, the following describes in detail an embodiment of the apparatus of the present application. It should be understood that the description of the method embodiment corresponds to the description of the apparatus embodiment. Therefore, for parts not described in detail, please refer to the method embodiment described above.

[0542] Following the method described above, Figure 20 is a schematic diagram of a communication device 10 according to an embodiment of the present invention. It can be understood that the communication device 10 may be a network device (e.g., a donor base station). As shown in Figure 20, the communication device 10 includes a transceiver unit 11 and a processing unit 12.

[0543] For example, the transceiver unit 11 is configured to transmit first information, the first information includes instruction information for a first pattern, the first pattern is one of several patterns, each of the several patterns indicates the distribution of at least one resource in the frequency domain, the at least one resource includes at least one of the following: first resource, second resource, and third resource, the first resource is a resource that is definitely available, the second resource is an unavailable resource, and the availability of the third resource is determined by the first instruction information, the first instruction information is transmitted by a first network device, and the resource distributions indicated by any two patterns are different.

[0544] The processing unit 12 is configured to determine resources for communication between a network device and a first node and / or terminal device based on a first pattern, where the first node is a relay node.

[0545] The transceiver unit 11 is further configured to allow network devices to communicate with the first node and / or terminal devices. Resources for communication between the network node and the first node and / or terminal devices may be located on resources determined by the processing unit 12.

[0546] Optionally, the transceiver unit 11 is further configured to transmit second information, which indicates a first time-domain resource.

[0547] Optionally, the processing unit 12 is further configured to determine resources for communicating with a first node and / or terminal device based on a first pattern in the first time-domain resources.

[0548] Optionally, the transceiver unit 11 may be further configured to allow a network device to communicate with a first node and / or terminal device in a first time-domain resource.

[0549] It should be understood that the communication device 10 may correspond to a network device (donor base station) in methods 1000 / 1100 / 1500 according to embodiments of the present application. The communication device 10 may include modules (or units) configured to perform the methods performed by the network device (donor base station) in Figures 10, 11, or 15. Furthermore, modules (or units) of the communication device 10 and other operations and / or functions described above are used individually to perform the corresponding procedures of methods 1000 / 1100 / 1500.

[0550] For example, the transceiver unit 11 is configured to perform operations performed by a network device (e.g., a donor base station) in methods S1010 and S1020, or S1110, S1120, S1130, S1140, and S1150, or S1510, S1520, S1530, and S1540. The steps by which each module (or unit) performs the corresponding steps are described in detail in methods 1000 / 1100 / 1500. For brevity, the details are not described again here.

[0551] It should be understood that the structure of the device 10 shown in Figure 20 is merely a possible form and should not constitute any limitation to this embodiment of the present invention. The present invention does not preclude the possibility that network devices may exist in other forms in the future.

[0552] The communication device 10 according to this embodiment of the present application may correspond to the network device (donor base station) in the embodiments of the method described above, and the aforementioned and other management operations and / or functions of the module (or unit) of the communication device 10 are used individually to carry out the corresponding steps of the method described above. Accordingly, the advantageous effects of the embodiments of the method described above can also be achieved.

[0553] It should be further understood that the processing module (or unit) in this embodiment of the present application may be implemented by a processor, and the transceiver module (or unit) may be implemented by a transceiver.

[0554] According to the method described above, Figure 21 is a schematic diagram of a communication device 20 according to an embodiment of the present invention. 20 It can be understood that this may be a first node, a component that can be used as a first node (e.g., a first IAB node), or a terminal device (e.g., a UE). As shown in Figure 21, the communication device 20 includes a transceiver unit 21 and a processing unit 22.

[0555] For example, the transceiver unit 21 is configured to receive first information. The first information includes instruction information for a first pattern, the first pattern being one of several patterns, each of which indicates the distribution of at least one resource in the frequency domain, the at least one resource including at least one of the following: first resource, second resource, and third resource, the first resource being a reliably available resource, the second resource being an unavailable resource, and the availability of the third resource being determined by the first instruction information, the first instruction information being transmitted by a first network device, and the resource distributions indicated by any two patterns being different.

[0556] The processing unit 22 is configured to determine resources for communicating with the second network device and / or terminal device based on the first pattern.

[0557] The transceiver unit 21 is further configured to allow the first node to communicate with the second network device and / or terminal device. Resources for communication between the network node and the first node and / or terminal device may be located on resources determined by the processing unit 22.

[0558] Optionally, the processing unit 22 is further configured to determine resources for communicating with a second network device and / or terminal device based on a first pattern in the first time-domain resources.

[0559] Optionally, the transceiver unit 21 is further configured to receive second information, which indicates a first time-domain resource.

[0560] Optionally, the transceiver unit 21 is further configured so that the first node communicates with a second network device and / or terminal device using a first time-domain resource.

[0561] It should be understood that the communication device 20 may correspond to the first node (first IAB node) in methods 1000 / 1100 / 1500 according to the embodiments of this application. The communication device 20 may include modules (or units) configured to perform the methods performed by the first node (first IAB node) in Figures 10, 11, or 15. Furthermore, modules (or units) of the communication device 20 and other operations and / or functions described above are used individually to perform the corresponding procedures of methods 1000 / 1100 / 1500.

[0562] For example, a transceiver unit 21 It is configured to perform the operations performed by the first node and / or terminal device in methods 1000 / 1100 / 1500, S1010 and S1020, or S1110, S1120, S1130, S1140, and S1150, or S1510, S1520, S1530, and S1540. The steps by which each module (or unit) performs the corresponding steps are described in detail in methods 1000 / 1100 / 1500. For brevity, the details are not described again here.

[0563] It should be understood that the structure of the device 20 shown in Figure 21 is merely a possible form and should not constitute any limitation to this embodiment of the present invention. The present invention does not preclude the possibility that network devices may exist in other forms in the future.

[0564] The communication device 20 according to this embodiment of the present application may correspond to the first node (first IAB node) in the embodiment of the method described above, and the aforementioned and other management operations and / or functions of the module (or unit) of the communication device 20 are used individually to carry out the corresponding steps of the method described above. Accordingly, the advantageous effects of the embodiment of the method described above can also be achieved.

[0565] It should be further understood that the processing module (or unit) in this embodiment of the present application may be implemented by a processor, and the transceiver module (or unit) may be implemented by a transceiver.

[0566] Following the method described above, Figure 22 is a schematic diagram of a communication device (which may also be called a network device) 30 according to an embodiment of the present invention. As shown in Figure 22, the device 30 may be a network device (e.g., a donor base station), or it may be a chip or circuit, for example, a chip or circuit that can be placed in a network device.

[0567] The apparatus 30 may include a processor 31 (i.e., an example of a processing unit) and a memory 32. The memory 32 is configured to store instructions, and the processor 31 is configured to execute instructions stored in the memory 32, thereby enabling the apparatus 30 to perform steps performed by a network device (e.g., a donor base station) in the aforementioned methods (e.g., method 1000, method 1100, or method 1500).

[0568] Optionally, the device 30 may further include an input port 33 (i.e., an example of a communication unit) and an output port 34 (i.e., another example of a communication unit). It should be understood that the processor 31, memory 32, input port 33, and output port 34 may communicate with each other through internal connection paths to transmit control signals and / or data signals.

[0569] Memory 32 is configured to store a computer program. The processor 31 may be configured to call the computer program from memory 32, execute the computer program, control the input port 33 to receive signals, and control the output port 34 to transmit signals, thereby completing the steps of the network device in the manner described above.

[0570] The memory 32 may be integrated into the processor 31, or it may be located separately from the processor 31.

[0571] Optionally, if device 30 is a network device, then input port 33 is a receiver and output port 34 is a transmitter. The receiver and transmitter may be the same physical entity or different physical entities. When the receiver and transmitter are the same physical entity, they may be collectively referred to as transceivers.

[0572] Optionally, if the device 30 is a chip or circuit, the input port 33 is an input interface and the output port 34 is an output interface.

[0573] In implementation, the functions of the input port 33 and output port 34 may be implemented by using a transceiver circuit or a special-purpose transceiver chip. The processor 31 may be implemented by using a special-purpose processing chip, processing circuit, processor, or general-purpose chip.

[0574] In other embodiments, the network device provided in this embodiment of the present application may be implemented using a general-purpose computer. Specifically, the program code used to implement the functions of the processor 31, input port 33, and output port 34 is stored in memory 32, and the general-purpose processor implements the functions of the processor 31, input port 33, and output port 34 by executing the code in memory 32.

[0575] In this embodiment of the present invention, output port 34 is configured to transmit first information, the first information comprising first pattern instruction information, the first pattern being one of a plurality of patterns, each of which indicates a distribution of at least one resource in the frequency domain, the at least one resource comprising at least one of the following resources: first resource, second resource, and third resource, the first resource being a reliably available resource, the second resource being an unavailable resource, and the availability of the third resource being determined by the first instruction information, the first instruction information being transmitted by a first network device, and the resource distributions indicated by any two patterns being different.

[0576] The processor 31 is configured to determine resources for communicating with a first node and / or terminal device based on a first pattern, where the first node is a relay node.

[0577] Optionally, output port 34 is further configured to transmit second information, which indicates a first time-domain resource.

[0578] Optionally, the processor 31 is further configured to determine resources for communicating with a first node and / or terminal device based on a first pattern in the first time-domain resources.

[0579] Optionally, the device 30 may be a network device, such as a donor base station, or may be configured within one.

[0580] The functions and operations of the modules or units in device 30 described above are merely examples for illustrative purposes. Modules or units of device 30 may be configured to perform operations or processing procedures performed by network devices (e.g., donor base stations) in the aforementioned methods 1000 / 1100 / 1500. Detailed descriptions are omitted here to avoid repetition.

[0581] For example, output port 34 is configured to execute operations or processing procedures performed by a network device (e.g., a donor base station) in methods 1000 / 1100 / 1500, S1010 and S1020, or S1110, S1120, S1130, S1140, and S1150, or S1510, S1520, S1530, and S1540.

[0582] Concepts, descriptions, and detailed explanations relating to the technical solution provided in this embodiment of the present application and relating to apparatus 30, and other steps, should be referred to the description of the method described above or to other embodiments. Details are not described again here.

[0583] In possible implementations, with the development of system-on-chip (SoC) technology, all or part of the functions of the device 30 are implemented using SoC technology, for example, by using a network device function chip. The network device function chip incorporates components such as a processor, memory, and communication interfaces. Programs related to the functions of the network device are stored in the memory. The processor executes programs to perform the functions related to the base station. Optionally, the network device function chip may also read memory outside the chip to execute programs related to the base station.

[0584] It should be understood that the structure of the device 30 shown in Figure 22 is merely a possible form and should not constitute any limitation to this embodiment of the present invention. The present invention does not preclude the possibility that base station structures may exist in other forms in the future.

[0585] Following the method described above, Figure 23 is a schematic diagram of a communication device (which may also be called a relay device or terminal device) 40 according to an embodiment of the present invention. As shown in Figure 23, the device 40 may be a first node (e.g., a first IAB node), or a component that may be used in a first node, or a terminal device (e.g., a UE), or a chip or circuit that may be placed in a relay node or terminal device.

[0586] The device 40 may include a processor 41 (i.e., an example of a processing unit) and a memory 42. The memory 42 is configured to store instructions, and the processor 41 is configured to execute instructions stored in the memory 42, thereby the device 40 performs the steps performed by the first node (e.g., the first IAB node) in the aforementioned methods (e.g., method 1000, method 1100, or method 1500).

[0587] Optionally, the device 40 may further include an input port 43 (i.e., an example of a communication unit) and an output port 44 (i.e., another example of a communication unit). It should be understood that the processor 41, memory 42, input port 43, and output port 44 may communicate with each other through internal connection paths to transmit control signals and / or data signals.

[0588] Memory 42 is configured to store computer programs. Processor 41 retrieves computer programs from memory 42, executes computer programs, controls input port 43 to receive signals, and controls output port 44 to transmit signals, in the manner described above. Node 1 It can be configured to complete the following steps.

[0589] The memory 42 may be integrated into the processor 41, or it may be located separately from the processor 41.

[0590] Optionally, if device 40 is a relay device or a terminal device, the input port 43 is a receiver and the output port 44 is a transmitter. The receiver and transmitter may be the same physical entity or different physical entities. When the receiver and transmitter are the same physical entity, they may be collectively referred to as transceivers.

[0591] Optionally, if the device 40 is a chip or circuit, the input port 43 is an input interface and the output port 44 is an output interface.

[0592] In implementation, the functions of the input port 43 and output port 44 may be implemented by using a transceiver circuit or a special-purpose transceiver chip. The processor 41 may be implemented by using a special-purpose processing chip, processing circuit, processor, or general-purpose chip.

[0593] In other embodiments, the first node provided in this embodiment of the present application (e.g., the first IAB node) may be implemented using a general-purpose computer. Specifically, the program code used to implement the functions of the processor 41, input port 43, and output port 44 is stored in memory 42, and the general-purpose processor implements the functions of the processor 41, input port 43, and output port 44 by executing the code in memory 42.

[0594] In this embodiment of the present application, the input port 43 is configured to receive first information, the first information comprising first pattern instruction information, the first pattern being one of a plurality of patterns, each of which indicates a distribution of at least one resource in the frequency domain, the at least one resource comprising at least one of the following resources: first resource, second resource, and third resource, the first resource being a reliably available resource, the second resource being an unavailable resource, and the availability of the third resource being determined by the first instruction information, the first instruction information being transmitted by a first network device, and the resource distributions indicated by any two patterns being different.

[0595] The processor 41 is configured to determine resources for communicating with a second network device and / or a terminal device based on a first pattern.

[0596] Optionally, the processor 41 is further configured to determine resources for communicating with a second network device and / or terminal device based on a first pattern in the first time-domain resources.

[0597] Optionally, input port 43 is further configured to receive second information, which indicates a first time-domain resource.

[0598] Optionally, the device 40 may be a relay device, a first node (e.g., a first IAB node), or a terminal device (e.g., a UE), or may be configured as such.

[0599] The functions and operations of the modules or units in device 40 described above are merely examples for illustrative purposes. Modules or units of device 40 may be configured to perform operations or processing procedures executed by the first node (e.g., the first IAB node) in the aforementioned methods 1000 / 1100 / 1500. Detailed descriptions are omitted here to avoid repetition.

[0600] For example, input port 43 is configured to perform operations performed by the first node (e.g., the first IAB node) in methods 1000 / 1100 / 1500, S1010 and S1020, or S1110, S1120, S1130, S1140, and S1150, or S1510, S1520, S1530, and S1540.

[0601] Concepts, descriptions, and detailed descriptions, and other steps relating to the technical solution provided in this embodiment of the present application and relating to apparatus 40 should be referred to the description of the method described above or to other embodiments. Details are not described again here.

[0602] In possible implementations, with the development of system-on-chip (SoC) technology, all or part of the functions of the device 40 are implemented using SoC technology, for example, by using a terminal device function chip. The terminal device function chip incorporates components such as a processor, memory, and communication interfaces. Programs related to the functions of the terminal device are stored in the memory. The processor executes the programs to perform the relevant functions of the user device. Optionally, the terminal device function chip may also read memory outside the chip to execute the programs related to the user device.

[0603] It should be understood that the structure of the device 40 shown in Figure 23 is merely a possible form and should not constitute any limitation to this embodiment of the present invention. The present invention does not preclude the possibility that base station structures may exist in other forms in the future.

[0604] It should be understood that the processor in the embodiments of this application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor, and the processor may be any conventional processor, etc.

[0605] It should be further understood that the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may be random access memory (RAM) and may be used as an external cache. For example, RAM can be used in many forms, not just as a limitation, such as static random access memory (static RAM, SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data-rate synchronous dynamic random access memory (double data rare SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchlink dynamic random access memory (synchlink DRAM, SLDRAM), and direct rambus random access memory (direct rambus RAM, DR RAM).

[0606] All or part of the embodiments described above may be implemented using software, hardware, firmware, or any other combination thereof. When software is used to implement the embodiments, all or part of the embodiments described above may be implemented in the form of a computer program product. A computer program product includes one or more computer instructions or computer programs. When a computer instruction or computer program is loaded and executed on a computer, all or part of the procedures or functions according to the embodiments of this application are generated. The computer may be a general-purpose computer, a dedicated computer, a computer network, or other programmable device. Computer instructions may be stored on a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted via a wired connection from one website, computer, server, or data center to another. or wireless Transmission may be by means of (for example, infrared, radio waves, or microwaves). The computer-readable medium may be any available medium accessible by a computer, or a data storage device such as a server or data center that incorporates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, or magnetic tapes), optical media (e.g., DVDs), or semiconductor media. The semiconductor media may be a solid-state drive.

[0607] The terms "and / or" in this specification should be understood as simply describing an association between related objects, indicating that three relationships may exist. For example, A and / or B can represent the following three cases: A exists only, both A and B exist, and B exists only. Furthermore, the letter " / " in this specification usually indicates a "logical OR" relationship between related objects.

[0608] It should be understood that the sequential numbering of the processes described above does not imply the execution order in the various embodiments of the present application. The execution order of the processes should be determined based on the function and internal logic of the processes, but should not be interpreted as any limitation on the implementation processes in the embodiments of the present application.

[0609] It should be further understood that the terms "First," "Second," etc., used herein are merely used for distinction to more clearly describe the technical solution of the present application and should not constitute any limitation to the present application.

[0610] As used herein, terms such as “component,” “module,” and “system” refer to computer-related entities, hardware, firmware, combinations of hardware and software, software, or running software. For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program, and / or a computer. As illustrated using the diagram, both computing devices and applications running on computing devices can be components. One or more components may reside in a process and / or an execution thread, and components may be located on one computer and / or distributed between two or more computers. Furthermore, these components may be executed from various computer-readable media that store various data structures. For example, a component may perform communication by using local processes and / or remote processes and based on signals, for example, one or more data packets (e.g., data from two components interacting with other systems across a network such as the Internet, in a distributed system and / or by using signals).

[0611] Those skilled in the art will notice, in combination with the examples described in the embodiments disclosed herein, that the units and algorithmic steps may be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed by hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may implement the described functions using different methods for each specific application, but it should not be considered that the implementation would exceed the scope of this application.

[0612] For convenience and brevity, it will be obvious to those skilled in the art that the detailed operating processes of the aforementioned systems, apparatus, and units should be referred to by the corresponding processes in the embodiments of the methods described above. Further details are not described here.

[0613] It should be understood that, in some embodiments provided herein, the disclosed systems, apparatus, and methods may be carried out in other ways. For example, the embodiments of the apparatus described above are merely examples. For example, the division of units is merely a logical functional division and may be other divisions during actual implementation. For example, multiple units or components may be combined or integrated with other systems, or some features may be ignored or not performed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be carried out by using some interfaces. Indirect coupling or communication connection between apparatus or units may be carried out electronically, mechanically, or in other forms.

[0614] Units described as separate parts may or may not be physically separated, and parts shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected based on actual requirements to achieve the objectives of the solution of the embodiment.

[0615] Furthermore, the functional units in the embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically independently, or two or more units may be integrated into a single unit.

[0616] When a function is implemented in the form of a software function unit and sold or used as an independent product, the function may be stored on a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be implemented in the form of a software product, either essentially or in part with respect to current technology, or in part with respect to the technical solution. The computer software product is stored on a storage medium and includes several instructions that instruct a computer device (which may be a personal computer, server, network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application. The aforementioned storage medium includes any medium capable of storing program code, such as a USB flash drive, removable hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0617] The foregoing description merely outlines specific implementations of the present application, but the scope of protection is not limited to these. Any modifications or substitutions that a person skilled in the art can easily conceive within the technical scope disclosed herein should also fall within the scope of protection. Accordingly, the scope of protection of this application should be subject to the scope of protection of the claims.

[0618] This application claims priority to Chinese Patent Application No. 202110363709.8, filed with the China National Intellectual Property Administration on April 2, 2021, with the title of the invention "WIRELESS COMMUNICATION METHOD AND APPRATUS". The prior Chinese Patent Application is incorporated herein by reference in its entirety.

Claims

1. A wireless communication method applicable to a relay device used for relay communication between a network device and a terminal device, The receiving of configuration information from the network device, the configuration information indicating resource availability, the configuration information including identification information for a plurality of instruction sets, each instruction set including availability instructions for a plurality of time-domain resources or frequency-domain resources, the plurality of instruction sets including a first instruction set and a second instruction set, the first instruction set corresponding to the time-domain resources, the second instruction set corresponding to the availability instructions for the frequency-domain resources, and the identification information for the first instruction set being different from the identification information for the second instruction set, the receiving of The availability of the time-domain resources and / or frequency-domain resources is determined based on the aforementioned configuration information. A method of having.

2. The availability indication for the frequency domain resources includes a resource availability indication for at least one RB set group, and each resource availability indication for an RB set group includes a resource availability indication for at least one slot's RB set group. The method according to claim 1.

3. The availability indication for the frequency domain resource includes a resource availability indication for at least one slot, the at least one slot having a first slot, and the resource availability indication for the first slot further includes a resource availability indication for at least one RB set group. The method according to claim 1.

4. A wireless communication method applicable to network devices, The transmission involves sending configuration information to a relay device used for relay communication between the network device and the terminal device, wherein the configuration information indicates resource availability, the configuration information includes identification information for a plurality of instruction sets, each instruction set includes availability instructions for a plurality of time-domain resources or frequency-domain resources, the plurality of instruction sets include a first instruction set and a second instruction set, the first instruction set corresponds to the time-domain resources, the second instruction set corresponds to the availability instructions for the frequency-domain resources, and the identification information for the first instruction set is different from the identification information for the second instruction set. The configuration information is used to determine the availability of the time-domain resources and / or the frequency-domain resources based on the configuration information. method.

5. The availability indication for the frequency domain resources includes a resource availability indication for at least one RB set group, and each resource availability indication for an RB set group includes a resource availability indication for at least one slot's RB set group. The method according to claim 4.

6. The availability indication for the frequency domain resource includes a resource availability indication for at least one slot, the at least one slot having a first slot, and the resource availability indication for the first slot further includes a resource availability indication for at least one RB set group. The method according to claim 4.

7. A relay device used for relay communication between a network device and a terminal device, The system comprises a processor and a non-temporary computer-readable storage medium that stores a program executed by the processor, The program will be configured to run to the relay device. The receiving of configuration information from the network device, the configuration information indicating resource availability, the configuration information including identification information for a plurality of instruction sets, each instruction set including availability instructions for a plurality of time-domain resources or frequency-domain resources, the plurality of instruction sets including a first instruction set and a second instruction set, the first instruction set corresponding to the time-domain resources, the second instruction set corresponding to the availability instructions for the frequency-domain resources, and the identification information for the first instruction set being different from the identification information for the second instruction set, the receiving of The availability of the time-domain resources and / or frequency-domain resources is determined based on the aforementioned configuration information. A relay device that includes instructions to execute a command.

8. The availability indication for the frequency domain resources includes a resource availability indication for at least one RB set group, and each resource availability indication for an RB set group includes a resource availability indication for at least one slot's RB set group. The relay device according to claim 7.

9. The availability indication for the frequency domain resource includes a resource availability indication for at least one slot, the at least one slot having a first slot, and the resource availability indication for the first slot further includes a resource availability indication for at least one RB set group. The relay device according to claim 7.

10. A network device, The system comprises a processor and a non-temporary computer-readable storage medium that stores a program executed by the processor, The program is configured on the network device. The configuration information is transmitted to a relay device used for relay communication between the network device and the terminal device, the configuration information indicates resource availability, the configuration information includes identification information for a plurality of instruction sets, each instruction set includes availability instructions for a plurality of time-domain resources or frequency-domain resources, the plurality of instruction sets include a first instruction set and a second instruction set, the first instruction set corresponds to the time-domain resources, the second instruction set corresponds to the availability instructions for the frequency-domain resources, the identification information for the first instruction set is different from the identification information for the second instruction set, and includes an instruction that causes the transmission to be performed. The configuration information is used to determine the availability of the time-domain resources and / or the frequency-domain resources based on the configuration information. Network device.

11. The availability indication for the frequency domain resources includes a resource availability indication for at least one RB set group, and each resource availability indication for an RB set group includes a resource availability indication for at least one slot's RB set group. The network device according to claim 10.

12. The availability indication for the frequency domain resource includes a resource availability indication for at least one slot, the at least one slot having a first slot, and the resource availability indication for the first slot further includes a resource availability indication for at least one RB set group. The network device according to claim 10.

13. A relay device having a unit configured to carry out the method described in claim 1.

14. A network device having a unit configured to carry out the method described in claim 4.

15. The relay device according to claim 13, The network device according to claim 14 and A wireless communication system having

16. It is a computer program, When the computer program is executed on a computer, the computer program causes the computer to perform the method according to claim 1. Computer program.

17. It is a computer program, When the computer program is executed on a computer, the computer program causes the computer to execute the method according to claim 4. Computer program.

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